Drive axle of dual-motor drive system of new energy automobile

Abstract

The invention discloses a drive axle of a dual-motor drive system of a new energy automobile, and relates to the technical field of drive axles. In the driving process, due to different environments, impurities in air enter the interior of the driving axle, the transmission process in the driving axle is influenced, according to the driving axle of the new energy automobile dual-motor driving system, through cooperation of an arc-shaped clamping strip and an arc-shaped inclined plate, in the entering process of external air, the entering air is guided, and the driving axle is more stable in driving. Air flows along the slopes of the arc-shaped inclined plates and enters the interior through gaps between the arc-shaped inclined plates, meanwhile, when the air flows through the gaps between the arc-shaped inclined plates, bending of the gap circulation space is increased through the arc-shaped clamping strips, large dust particles in the air are blocked by the arc-shaped clamping strips and cannot enter the interior, and through the cooperation with the filtering effect of the hollowed-out plates, the air purification effect is improved. And in the running process of the automobile, the heat dissipation effect is guaranteed, and meanwhile the situation that external sundries cannot enter the interior, and internal transmission is affected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of drive axles, and in particular to a drive axle of a dual-motor drive system for a new energy vehicle. Background Art

[0002] New energy vehicles refer to vehicles that use new power systems and are completely or mainly driven by new energy. They have the characteristics of energy saving and environmental protection. They are driven by the electric energy stored in the battery pack and powered by an electric motor. The drive axle is a mechanism located at the end of the transmission system that can change the speed and torque from the transmission and transmit them to the drive wheels, changing the direction of force transmission, and the main reducer reduces the speed. After increasing the torque, it is distributed to the left and right half shafts and drive wheels through the differential. The drive axle of new energy vehicles is a key component of the transmission system of new energy vehicles. It is located at the end of the transmission system and is mainly used to convert and transmit the power of the drive motor to reduce the speed, increase the torque, and reasonably distribute the power to the drive wheels, so that the vehicle can run normally according to the driver's operation; During the operation of the drive axle, empty slots are opened for heat dissipation. However, due to different environments during driving, impurities in the air enter the interior of the drive axle, affecting the transmission process inside the drive axle. Summary of the invention

[0003] To achieve the above objectives, the present invention is implemented through the following technical solutions: A drive axle of a dual-motor drive system for a new energy vehicle, comprising: A housing, a controller is fixedly mounted on the top of the housing, and fixing blocks are fixedly mounted on both sides of the housing; A motor, which is symmetrically mounted inside the housing along the center of the housing, wherein the output ends of the motor are both driven and mounted with a differential, and the end of the differential away from the motor is both driven and mounted with a transmission shaft; A locking mechanism, which is located inside the housing and installed between the motors; A heat dissipation mechanism, which is symmetrically mounted on the outer side of the shell along the center position of the shell; The top of the shell is symmetrically provided with fan-shaped grooves, and the fan-shaped grooves of the shell are fixedly installed with arc frames, the inner walls of the arc frames are fixedly installed with hollow plates, and the outer sides of the hollow plates are evenly provided with hole grooves, and side blocks are fixedly installed on both sides of the bottom of the arc frame, and arc inclined plates are fixedly installed between the side blocks, and the arc inclined plates are evenly installed along the axial direction, and the bottom ends of the arc inclined plates are inclined downward and there are gaps between the arc inclined plates. Through the cooperation of the arc-shaped clips and the arc-shaped clips, during the process of outside air entering, the incoming air is guided so that the air flows along the inclined surfaces of the arc inclined plates and enters the interior through the gaps between the arc inclined plates. At the same time, when the air flows through the gaps between the arc inclined plates, the arc-shaped clips increase the tortuosity of the gap circulation space, so that large dust particles in the air are blocked by the arc-shaped clips and cannot enter the interior. Cooperating with the filtering effect of the hollow plates, the heat dissipation effect is ensured during the driving of the car, while preventing external debris from entering the interior and affecting the internal transmission. The bottom ends of the arc inclined plates of the internal transmission are fixedly installed with arc-shaped clips.

[0004] There is a gap between the arc-shaped clamping strip and the top arc-slanted plate, and the arc-slanted plate is located below the hollow plate. The output ends of the motors are connected to the differential transmission, and the non-output ends of the motors are connected through a locking mechanism. There are two controllers, and the controllers are electrically connected to the motors.

[0005] Preferably, the locking mechanism includes a cavity cover, which is fixedly mounted inside the shell, and bearings are fixedly mounted at both ends of the inner wall of the cavity cover, and a clamping shaft is rotatably mounted on the inner wall of the bearing, and a clamping gear is clamped at one end of the clamping shaft close to the motor, and a gear cylinder is meshed on the outer side of the clamping gear, and one end of the inner wall of the gear cylinder close to the motor is clamped with the non-output end of the motor, and a connecting flange is provided at one end of the clamping shaft away from the motor, and an inner gear cylinder is flange-connected at one end of the clamping shaft away from the motor, and tooth grooves are evenly opened on the inner wall of the inner gear cylinder, and the tooth grooves correspond to the through holes one by one. During the transmission process, the centrifugal force during rotation causes the wear debris at the meshing position between the inner gear cylinder and the gear ring to be guided out of the through holes under the action of the centrifugal force, so that the wear debris is separated from the meshing transmission position, and the wear debris is prevented from accumulating at the meshing position, which makes it easier for the gear ring and the inner gear cylinder to wear when meshing, and through holes are evenly opened on the outer side of the inner gear cylinder, and the through holes correspond to the tooth grooves one by one.

[0006] Preferably, a sealing cover is fixedly connected to the inner wall of the cavity cover, and the sealing cover is symmetrically installed along the center position of the axis of the cavity cover, and the opposite surfaces of the sealing cover are tightly fitted with the non-opposite surfaces of the inner gear cylinder to form a seal, and the inner gear cylinder is wrapped by the sealing cover so that the inner gear cylinder is between the sealing covers, and cooperates with the through hole of the inner gear cylinder to limit the debris flying out of wear, so as to prevent the debris from being unrestricted after leaving the meshing position and floating freely inside the drive axle, causing obstruction and jamming when the drive axle is working, and at the same time limit the position of the inner gear cylinder to ensure meshing with the gear ring during transmission, so as to ensure the normal operation of the drive axle, and a clamping column is installed between the inner gear cylinders, and the two ends of the outer side of the clamping column are clamped with gear rings, and the clamping column is meshed with the tooth groove of the inner gear cylinder through the gear ring.

[0007] The top end of the outer cover is fixedly connected with a conical cover, and the inner diameter of the conical cover gradually increases from top to bottom. The outer side of the conical cover is fixedly connected with an outer cover tube, and the inner wall of the outer cover tube is slidably mounted on the inner wall of the inner support ring. The bottom end of the outer cover tube is fixedly connected with a limit plate, and the top end of the slide column is fixedly connected with a conical cover. The inner diameter of the conical cover gradually increases from top to bottom. The outer side of the conical cover is fixedly connected with an outer cover tube, and the air pressure pushes the conical cover to rise to different heights according to different internal temperatures, so that the outer cover tube opens different numbers of air holes in the heat dissipation tube, opens more air holes when the air pressure is increased, and quickly discharges the internal high-temperature air, and closes the air holes when the air pressure is low to avoid the air holes being blocked during driving. The inner wall of the outer cover tube is slidably adapted to the outer side of the heat dissipation tube, and the bottom end of the outer cover tube is fixedly connected with an outer clamping ring, the bottom end of the outer clamping ring is evenly provided with notches, and the inner wall of the outer clamping ring contacts the outer side of the heat dissipation tube.

[0008] The present invention provides a drive axle of a dual-motor drive system for a new energy vehicle, which has the following beneficial effects: 1. The drive axle of the dual-motor drive system of the new energy vehicle, through the cooperation of the arc-shaped card strip and the arc-shaped inclined plate, guides the incoming air during the process of the outside air entering, so that the air flows along the inclined surface of the arc-shaped inclined plate and enters the interior through the gap between the arc-shaped inclined plates. At the same time, the arc-shaped card strip increases the tortuosity of the gap flow space when the air flows through the gap between the arc-shaped inclined plates, so that large dust particles in the air are blocked by the arc-shaped card strip and cannot enter the interior. Combined with the filtering effect of the hollow plate, the heat dissipation effect is ensured during the driving of the car, while preventing external debris from entering the interior and affecting the internal transmission.

[0009] 2. The drive axle of the dual-motor drive system of the new energy vehicle has a one-to-one correspondence between the tooth grooves and the through holes. During the transmission process, the centrifugal force during rotation causes the wear debris at the meshing position between the inner gear cylinder and the gear ring to be guided out through the through holes under the action of the centrifugal force, so that the wear debris is separated from the meshing transmission position, avoiding the accumulation of wear debris at the meshing position, which makes it easier to wear when the gear ring and the inner gear cylinder are meshing.

[0010] 3. The drive axle of the dual-motor drive system of the new energy vehicle wraps the inner gear cylinder with a sealing cover, so that the inner gear cylinder is between the sealing covers and cooperates with the through hole of the inner gear cylinder to limit the debris flying out due to wear, so as to prevent the debris from being unrestricted after leaving the meshing position and floating freely inside the drive axle, causing obstruction and jamming of the drive axle when working. At the same time, the position of the inner gear cylinder is limited to ensure the meshing with the gear ring during transmission, thereby ensuring the normal operation of the drive axle.

[0011] 4. The drive axle of the dual-motor drive system of the new energy vehicle, through the cooperation of the outer cover tube and the heat dissipation hole tube, makes the air pressure push the conical cover to different heights according to the different internal temperatures, so that the outer cover tube opens different numbers of air holes in the heat dissipation hole tube. When the air pressure increases, more air holes are opened to quickly discharge the internal high-temperature air. When the air pressure is low, the air holes are closed to avoid being blocked during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a drive axle of a dual-motor drive system for a new energy vehicle according to the present invention; Figure 2 A structural side view of a drive axle of a dual-motor drive system for a new energy vehicle according to the present invention; Figure 3 This is a structural dissection diagram of a drive axle of a dual-motor drive system for a new energy vehicle according to the present invention; Figure 4 A structural dissected side view of a drive axle of a dual-motor drive system for a new energy vehicle according to the present invention; Figure 5 A schematic diagram of a portion of the structure of a drive axle of a dual-motor drive system for a new energy vehicle according to the present invention; Figure 6 A partial structural dissection diagram of a drive axle of a dual-motor drive system for a new energy vehicle according to the present invention; Figure 7 It is a structural schematic diagram of the locking mechanism of the present invention; Figure 8 It is a structural dissection diagram of the locking mechanism of the present invention; Fig. 9 It is a structural schematic diagram of the heat dissipation mechanism of the present invention; Fig.10 It is a structural dissection diagram of the heat dissipation mechanism of the present invention.

[0013] In the figure: 1, housing; 2, fixing block; 3, transmission shaft; 4, controller; 5, heat dissipation mechanism; 6, differential; 7, locking mechanism; 8, motor; 9, hollow plate; 10, arc frame; 11, side block; 12, arc inclined plate; 13, arc clamping strip; 51, heat dissipation hole cylinder; 52, conical cover; 53, outer cover cylinder; 54, outer clamping ring; 55, sliding column; 56, inner support ring; 57, limit plate; 71, cavity cover; 72, gear cylinder; 73, clamping gear; 74, clamping shaft; 75, bearing; 76, gear ring; 77, sealing cover; 78, inner gear cylinder; 79, clamping column. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] The first embodiment, as Figures 1 to 6 As shown, the present invention provides a technical solution: A drive axle of a dual-motor drive system for a new energy vehicle, comprising: A housing 1, a controller 4 is fixedly mounted on the top of the housing 1, and fixing blocks 2 are fixedly mounted on both sides of the housing 1; The motor 8 is symmetrically mounted inside the housing 1 along the center of the housing 1, and the output end of the motor 8 is driven and mounted with a differential 6, and the end of the differential 6 away from the motor 8 is driven and mounted with a transmission shaft 3; A locking mechanism 7, which is located inside the housing 1 and installed between the motors 8; A heat dissipation mechanism 5, which is symmetrically installed on the outer side of the housing 1 along the center position of the housing 1; The top of the shell 1 is symmetrically provided with fan-shaped grooves, and the fan-shaped grooves of the shell 1 are fixedly installed with arc frames 10, the inner walls of the arc frames 10 are fixedly installed with hollow plates 9, and the outer sides of the hollow plates 9 are evenly provided with hole grooves. Side blocks 11 are fixedly installed on both sides of the bottom of the arc frame 10. The motor 8 continues to work, and the temperature gradually rises, so that the temperature inside the shell 1 rises, and the pressure increases. After the internal air pressure increases, the internal hot air flows outward through the heat dissipation mechanism 5, and at the same time, the low-temperature air from the outside enters through the hollow plates 9 fixedly connected to the inner wall of the arc frame 10. An arc inclined plate 12 is fixedly installed between the side blocks 11, and the arc inclined plate 12 is along the axis. The arc inclined plates 12 are evenly installed, the bottom ends of the arc inclined plates 12 are inclined downward and there are gaps between the arc inclined plates 12. During the entry process, the low-temperature air passes through the hollow plate 9, contacts the arc inclined plates 12, and is guided by the arc inclined plates 12, so that the air flows along the inclination angle of the arc inclined plates 12, and is introduced into the shell 1 through the gaps between the arc inclined plates 12. At the same time, when passing through the gaps between the arc inclined plates 12, the air is blocked by the arc-shaped card strips 13, so that large particles of dust in the low-temperature air are blocked by the arc-shaped card strips 13, and the air passes through the gaps into the interior of the shell 1, thereby reducing the temperature inside the shell 1. The bottom ends of the arc inclined plates 12 are fixedly installed with arc-shaped card strips 13.

[0016] There is a gap between the arc-shaped clip 13 and the top arc-slanted plate 12, the arc-slanted plate 12 is located below the hollow plate 9, the output ends of the motor 8 are connected to the differential 6, and the non-output ends of the motor 8 are connected through the locking mechanism 7, there are two controllers 4, and the controller 4 is electrically connected to the motor 8.

[0017] The second embodiment is based on the first embodiment. Figures 7 and 8 As shown, the locking mechanism 7 includes a cavity cover 71, which is fixedly installed inside the housing 1. Bearings 75 are fixedly installed at both ends of the inner wall of the cavity cover 71. A clamping shaft 74 is rotatably installed on the inner wall of the bearing 75. A clamping gear 73 is clamped at one end of the clamping shaft 74 close to the motor 8. A gear cylinder 72 is meshed on the outer side of the clamping gear 73. An end of the inner wall of the gear cylinder 72 close to the motor 8 is clamped with the non-output end of the motor 8. The non-output ends of the rotating shaft of the rotor of the motor 8 are all clamped with the gear cylinder 72. When a single motor 8 is working, During the rotation of the shaft, the output end outputs mechanical force to the outside through the differential 6, while the non-output end is connected with the card gear 73 through the card gear 73 through the card shaft 74, so that the card gear 73 drives the inner gear cylinder 78 to rotate through the card shaft 74, and the end of the card shaft 74 away from the motor 8 is provided with a connecting flange, and the end of the card shaft 74 away from the motor 8 is flange-connected to the inner gear cylinder 78, the inner wall of the inner gear cylinder 78 is evenly provided with tooth grooves, and the outer side of the inner gear cylinder 78 is evenly provided with through holes, and the through holes correspond to the tooth grooves one by one.

[0018] The inner wall of the cavity cover 71 is fixedly connected with a sealing cover 77, which is symmetrically installed along the center position of the axis of the cavity cover 71, and the opposite surface of the sealing cover 77 is tightly fitted with the non-opposite surface of the inner gear cylinder 78 to form a seal. A clamping column 79 is installed between the inner gear cylinders 78. By rotating the inner gear cylinder 78 on one side, the meshing of the gear ring 76 and the inner gear cylinder 78 and the clamping of the gear ring 76 and the clamping column 79 are used to make the inner gear cylinder 78 on one side rotate, drive the inner gear cylinder 78 on the other side to rotate, and drive the non-working motor 8 to rotate. The gear ring 76 rotates, causing the transmission shaft 3 to rotate and output mechanical force outward through the differential 6 on the other side. At the same time, during the process of continuous meshing transmission between the gear ring 76 and the inner gear cylinder 78, the gear ring 76 and the inner gear cylinder 78 are constantly worn. At this time, the worn metal debris passes through the through hole of the inner gear cylinder 78 under the action of centrifugal force during rotation, and leaves the meshing position between the gear ring 76 and the inner gear cylinder 78. The gear ring 76 is clamped at both ends of the outer side of the clamping column 79, and the clamping column 79 is meshed with the tooth groove of the inner gear cylinder 78 through the gear ring 76.

[0019] The third embodiment is based on the first and second embodiments. Figures 9 and 10 As shown, the heat dissipation mechanism 5 includes a heat dissipation hole tube 51, and air holes are evenly opened on the outer side of the heat dissipation hole tube 51, and an inner support ring 56 is fixedly installed at the bottom of the inner wall of the heat dissipation hole tube 51, and a sliding column 55 is slidably installed on the inner wall of the inner support ring 56. A limit plate 57 is fixedly installed at the bottom end of the sliding column 55. When the motor 8 is working and generates high temperature, the high-temperature and high-pressure air inside the shell 1 diffuses outward and enters the heat dissipation hole tube 51, and is guided out through the air holes opened on the outer side of the heat dissipation hole tube 51. During the guiding process, it is first guided out through the air holes at the bottom of the outer side of the heat dissipation hole tube 51, and the top of the sliding column 55 is fixedly connected to a conical cover 52, the inner diameter of the conical cover 52 gradually increases from top to bottom, and the outer side of the conical cover 52 is fixedly connected to an outer cover tube 53, the inner wall of the outer cover tube 53 is slidably adapted to the outer side of the heat dissipation hole tube 51, and the bottom end of the outer cover tube 53 is fixedly connected with an outer retaining ring 54. When the internal temperature is too high and the pressure is relatively high, the air holes at the bottom cannot quickly discharge the high-temperature air. At this time, the upward pressure pushes the conical cover 52, so that the conical cover 52 drives the sliding column 55, and the sliding column 55 slides under the restriction of the inner support ring 56. At the same time, the conical cover 52 drives the outer cover tube 53 and the outer retaining ring 54 to move upward during the movement, and moves to different heights according to the size of the air pressure, so that the outer cover tube 53 opens different numbers of air holes for air conduction and heat dissipation. The bottom end of the outer retaining ring 54 is evenly provided with notches, and the inner wall of the outer retaining ring 54 is in contact with the outer side of the heat dissipation hole tube 51.

[0020] When in use, the drive axle is installed in a new energy vehicle. According to the driver's operation, the controller 4 controls the two motors 8 inside the housing 1 to work. When a small torque drive is required, the single motor 8 is controlled to rotate, so that the motor 8 in the working state drives the output shaft of the other non-working motor 8 to rotate through the locking mechanism 7, so that the output ends of the two motors 8 drive the transmission shaft 3 to rotate through the differential 6, so that the transmission shaft 3 transmits torque to the wheels of the car, so that the wheels rotate and drive the car to move. When a large torque drive is required, the two motors 8 work at the same time to output torque and increase the rotational torque.

[0021] During driving, the motor 8 works continuously and the temperature gradually rises, causing the temperature inside the shell 1 to rise and the pressure to increase. After the internal air pressure increases, the hot air inside flows outward through the heat dissipation mechanism 5, and at the same time, the low-temperature air from the outside enters through the hollow plate 9 fixedly connected to the inner wall of the arc frame 10. During the entry process, after the low-temperature air passes through the hollow plate 9, it contacts the arc inclined plate 12 and is guided by the arc inclined plate 12, so that the air flows along the inclination angle of the arc inclined plate 12, and is introduced into the shell 1 through the gap between the arc inclined plates 12. At the same time, when passing through the gap between the arc inclined plates 12, it is blocked by the arc clip 13, so that large particles of dust in the low-temperature air are blocked by the arc clip 13, and the air passes through the gap into the interior of the shell 1, thereby reducing the temperature inside the shell 1.

[0022] In the heat dissipation mechanism 5, when the motor 8 generates high temperature during operation, the high-temperature and high-pressure air inside the shell 1 diffuses outward and enters the heat dissipation hole tube 51, and is discharged through the air holes opened on the outside of the heat dissipation hole tube 51. During the discharge process, the air is first discharged through the air holes at the bottom of the outside of the heat dissipation hole tube 51. When the internal temperature is too high and the pressure is relatively high, the air holes at the bottom cannot quickly discharge the high-temperature air. At this time, the upward surge of air pressure pushes the conical cover 52, so that the conical cover 52 drives the sliding column 55, so that the sliding column 55 slides under the restriction of the inner support ring 56. At the same time, the conical cover 52 drives the outer cover tube 53 and the outer retaining ring 54 to move upward during the movement, and moves to different heights according to the size of the air pressure, so that the outer cover tube 53 opens different numbers of air holes for air conduction and heat dissipation.

[0023] In the locking mechanism 7, the non-output end of the shaft of the motor 8 rotor is engaged with the gear cylinder 72. When a single motor 8 is working, during the rotation of the shaft, the output end outputs mechanical force outward through the differential 6, while the non-output end is engaged with the gear cylinder 72 and the card gear 73, so that the card gear 73 drives the inner gear cylinder 78 to rotate through the card shaft 74. By utilizing the rotation of the inner gear cylinder 78 on one side, the meshing of the gear ring 76 and the inner gear cylinder 78 and the engagement of the gear ring 76 and the card column 79, the inner gear cylinder 78 on one side is driven to rotate when the inner gear cylinder 78 on the other side is rotated, and the non-working motor 8 rotor is driven to rotate, so that the transmission shaft 3 is driven to rotate and output mechanical force outward through the differential 6 on the other side. At the same time, in the process of continuous meshing transmission between the gear ring 76 and the inner gear cylinder 78, the gear ring 76 and the inner gear cylinder 78 are constantly worn. At this time, the worn metal debris passes through the through hole of the inner gear cylinder 78 under the action of centrifugal force during rotation, and leaves the meshing position of the gear ring 76 and the inner gear cylinder 78.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drive axle of a dual-motor drive system for a new energy vehicle, characterized in that: include: A housing (1), a controller (4) being fixedly mounted on the top of the housing (1), and fixing blocks (2) being fixedly mounted on both sides of the housing (1); A motor (8), the motor (8) being symmetrically mounted inside the housing (1) along the center position of the housing (1), the output end of the motor (8) being drive-mounted with a differential (6), and the end of the differential (6) away from the motor (8) being drive-mounted with a transmission shaft (3); A locking mechanism (7), the locking mechanism (7) being located inside the housing (1) and installed between the motors (8); A heat dissipation mechanism (5), the heat dissipation mechanism (5) being symmetrically mounted on the outer side of the shell (1) along the center position of the shell (1); The top of the shell (1) is symmetrically provided with fan-shaped grooves, and the fan-shaped grooves of the shell (1) are all fixedly installed with arc frames (10), the inner walls of the arc frames (10) are all fixedly installed with hollow plates (9), and the outer sides of the hollow plates (9) are evenly provided with hole grooves, and the two sides of the bottom of the arc frame (10) are all fixedly installed with side blocks (11), and arc inclined plates (12) are fixedly installed between the side blocks (11), and the arc inclined plates (12) are evenly installed along the axial direction, and the bottom ends of the arc inclined plates (12) are inclined downward and there are gaps between the arc inclined plates (12), and the bottom ends of the arc inclined plates (12) are all fixedly installed with arc clamping strips (13).

2. The drive axle of the dual-motor drive system of a new energy vehicle according to claim 1, characterized in that: There is a gap between the arc-shaped clamping strip (13) and the arc-sloping plate (12) at the top, and the arc-sloping plate (12) is located below the hollow plate (9).

3. The drive axle of the dual-motor drive system of a new energy vehicle according to claim 2, characterized in that: The output ends of the motors (8) are drivingly connected to the differential (6), and the non-output ends of the motors (8) are connected via a locking mechanism (7). There are two controllers (4), and the controllers (4) are electrically connected to the motors (8).

4. The drive axle of the dual-motor drive system of a new energy vehicle according to claim 3, characterized in that: The locking mechanism (7) comprises a cavity cover (71), the cavity cover (71) being fixedly mounted inside the housing (1), bearings (75) being fixedly mounted on both ends of the inner wall of the cavity cover (71), a clamping shaft (74) being rotatably mounted on the inner wall of the bearing (75), a clamping gear (73) being clamped on one end of the clamping shaft (74) close to the motor (8), a gear cylinder (72) being meshed on the outer side of the clamping gear (73), and an end of the inner wall of the gear cylinder (72) close to the motor (8) being clamped on the non-output end of the motor (8).

5. The drive axle of the dual-motor drive system of a new energy vehicle according to claim 4, characterized in that: The end of the clamping shaft (74) away from the motor (8) is provided with a connecting flange, and the end of the clamping shaft (74) away from the motor (8) is flange-connected to an internal gear cylinder (78), the inner wall of the internal gear cylinder (78) is uniformly provided with tooth grooves, and the outer side of the internal gear cylinder (78) is uniformly provided with through holes, and the through holes correspond to the tooth grooves one by one.

6. The drive axle of the dual-motor drive system of a new energy vehicle according to claim 5, characterized in that: A sealing cover (77) is fixedly connected to the inner wall of the cavity cover (71); the sealing cover (77) is symmetrically installed along the central position of the axis of the cavity cover (71); and the opposite surface of the sealing cover (77) is tightly fitted with the non-opposite surface of the inner gear cylinder (78) to form a seal.

7. The drive axle of the dual-motor drive system of a new energy vehicle according to claim 6, characterized in that: A clamping column (79) is installed between the inner gear cylinder (78), and both ends of the outer side of the clamping column (79) are clamped with a gear ring (76), and the clamping column (79) is meshed with the tooth groove of the inner gear cylinder (78) through the gear ring (76).

8. The drive axle of the dual-motor drive system of a new energy vehicle according to claim 7, characterized in that: The heat dissipation mechanism (5) comprises a heat dissipation hole cylinder (51), the outer side of the heat dissipation hole cylinder (51) is evenly provided with air holes, and the bottom of the inner wall of the heat dissipation hole cylinder (51) is fixedly mounted with an inner support ring (56).

9. The drive axle of the dual-motor drive system of a new energy vehicle according to claim 8, characterized in that: A sliding column (55) is slidably mounted on the inner wall of the inner support ring (56), a limiting plate (57) is fixedly mounted on the bottom end of the sliding column (55), and a conical cover (52) is fixedly connected to the top end of the sliding column (55), the inner diameter of the conical cover (52) gradually increasing from top to bottom.

10. The drive axle of the dual-motor drive system of a new energy vehicle according to claim 9, characterized in that: An outer cover tube (53) is fixedly connected to the outer side of the conical cover (52), the inner wall of the outer cover tube (53) is slidably matched with the outer side of the heat dissipation hole tube (51), and an outer clamping ring (54) is fixedly connected to the bottom end of the outer cover tube (53), the bottom end of the outer clamping ring (54) is evenly provided with notches, and the inner wall of the outer clamping ring (54) is in contact with the outer side of the heat dissipation hole tube (51).

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