CN111162632A

CN111162632A - Motor integrated form main reducer assembly

Info

Publication number: CN111162632A
Application number: CN202010127634.9A
Authority: CN
Inventors: 纪建奕; 韩振东; 杨朝会; 刘本友; 刘宗强; 王至昊
Original assignee: Qingdao Auto Parts Technology Innovation Service Co Ltd
Current assignee: Qingdao Auto Parts Technology Innovation Service Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-05-15

Abstract

The invention provides a motor integrated main reducer assembly, which comprises a driving motor, a transmission mechanism, a main reducer shell and a fixing mechanism, wherein a motor shaft is arranged at the right end of the driving motor, the transmission mechanism comprises a first rotating wheel, a second rotating wheel and a third rotating wheel, the motor shaft drives the first rotating wheel to rotate, the second rotating wheel is arranged at the bottom of the first rotating wheel, the second rotating wheel is meshed with the first rotating wheel, the third rotating wheel is arranged at the bottom of the second rotating wheel, the third rotating wheel is meshed with the second rotating wheel, the main reducer shell is in interference fit with the driving motor, the main reducer shell is connected with the transmission mechanism through a bearing, the fixing mechanism comprises an end cover, an adjusting ring and a locking plate, the end cover is fixedly connected with the main reducer shell through a fixing bolt, one end of the adjusting ring is in threaded connection with the transmission mechanism, and the other end of the adjusting ring is fixedly connected, therefore, the invention has the advantage of improving the performance of the whole vehicle by improving the integral rigidity.

Description

Motor integrated form main reducer assembly

Technical Field

The invention belongs to the technical field of distributed driving electric drive axles, and particularly relates to a motor integrated main reducer assembly.

Background

With the further advance of new energy automobile technology in recent years, the new energy automobile technology is more perfect, the application of electric drive axles is more and more, and the technical upgrade of electric drive axles is more important. At present, the arrangement structure of the mainstream at home and abroad is that a motor is connected to a hub reduction gear through a bolt and is used for driving the hub reduction gear through the motor.

Although the motor is connected with the hub reduction gear through the bolt, the structure is simple, the whole rigidity is poor, and the improvement of the performance of the whole vehicle is not facilitated.

Disclosure of Invention

The invention provides a motor integrated main reducer assembly which can improve the performance of a whole vehicle by improving the rigidity of the whole vehicle.

The technical scheme of the invention is realized as follows: a motor integrated type main reducer assembly comprises a driving motor, a transmission mechanism, a main reducer shell and a fixing mechanism;

the right end of the driving motor is provided with a motor shaft which is used for driving the transmission mechanism to rotate;

the transmission mechanism adopts a cylindrical bevel gear train and comprises a first rotating wheel, a second rotating wheel and a third rotating wheel, the axes of the first rotating wheel, the second rotating wheel and the third rotating wheel are arranged on the same plane, the first rotating wheel is connected with a motor shaft through a spline, the motor shaft drives the first rotating wheel to rotate, the second rotating wheel is arranged at the bottom of the first rotating wheel and is meshed with the first rotating wheel, the outer diameter of the second rotating wheel is larger than that of the first rotating wheel, the third rotating wheel is arranged at the bottom of the second rotating wheel and is meshed with the second rotating wheel, and the outer diameter of the third rotating wheel is larger than that of the second rotating wheel;

the main reducer shell is in interference fit with the driving motor, and the main reducer shell is in bearing connection with the transmission mechanism;

fixing mechanism includes end cover, adjusting ring and locking plate, and the end cover sets up in the right side of main reducer casing, and the end cover passes through fixed connection between fixing bolt and the main reducer casing, and the adjusting ring sets up on the main reducer casing, threaded connection between the one end of adjusting ring and the drive mechanism, and the other end of adjusting ring passes through fixed connection between locking plate and the end cover, and the adjusting ring is used for adjusting drive mechanism's bearing play.

The main reducer casing is sleeved outside the driving motor in an interference fit mode, the bolt connection between the motor and the main reducer is omitted, the whole weight is reduced, the rigidity of the main reducer casing is improved, and the NVH optimization design is facilitated. The cylindrical helical tooth type of the transmission mechanism is arranged, so that the contact area between gears is increased, the rigidity of the transmission mechanism is improved, and meanwhile, because the axes of the first rotating wheel, the second rotating wheel and the third rotating wheel are coplanar, the condition of unbalanced bearing force in the transmission process is effectively reduced, and the influence on the rigidity of a shell of the main speed reducer is reduced. The end cover is put into on the right side of the main reducer shell, after the bearing and the end cover are matched in place, the end cover and the main reducer shell are fastened through a fixing bolt, then the bearing clearance of the transmission mechanism is adjusted through the adjusting ring, and after the adjustment is in place, the adjusting ring is fixed through the locking plate. The motor shaft is driven to rotate by the driving motor, the first rotating wheel is driven to rotate by the motor shaft, the second rotating wheel is driven to rotate by the first rotating wheel, the third rotating wheel is driven to rotate by the second rotating wheel, and power is transmitted to the wheel end by the third rotating wheel through the half shaft, so that driving is realized.

As a preferred embodiment, the main reducer casing includes a first casing, a second casing and a third casing that are integrally arranged, the first casing is arranged on the top of the second casing, an interference fit is formed between one end of the first casing and the driving motor, the other end of the first casing is in bearing connection with the transmission mechanism, the second casing is in a plate-type arrangement, the third casing is arranged on the bottom of the second casing, and the third casing is in bearing connection with the rotation mechanism.

As a preferred embodiment, the third housings include two identical third housings, the two third housings are respectively disposed at left and right ends of the third rotating wheel, the third housing is provided with a third bearing seat, a third rotating shaft is disposed in the third rotating wheel through a spline connection, and the left and right ends of the third rotating shaft are respectively in bearing connection with the third bearing seat.

The third shell is used for fixing a third rotating wheel, and the third rotating shaft transmits power to the wheel end through a spline connection half shaft to realize driving.

As a preferred embodiment, the first housing includes a first connecting portion and a second connecting portion that are integrally disposed, the first connecting portion is sleeved outside the driving motor, the left and right ends of the inner wall of the first connecting portion and the outer wall of the driving motor are in interference fit, the second connecting portion is disposed on the right side of the first connecting portion, a first bearing seat and a second bearing seat are disposed in the second connecting portion, and the first bearing seat is disposed above the second bearing seat.

The first bearing seat is used for fixing the first rotating wheel, and the second bearing seat is used for fixing the second rotating wheel.

In a preferred embodiment, the end cover is provided with a fourth bearing seat and a fifth bearing seat, and the fourth bearing seat is arranged above the fifth bearing seat.

The fourth bearing seat is used for fixing the first rotating wheel, and the fifth bearing seat is used for fixing the second rotating wheel.

As a preferred embodiment, a first rotating shaft is disposed in the first rotating wheel through spline connection, a left end of the first rotating shaft is in bearing connection with the first bearing seat, a right end of the first rotating shaft is in bearing connection with the fourth bearing seat, a second rotating shaft is disposed in the second rotating wheel through spline connection, a left end of the second rotating shaft is in bearing connection with the second bearing seat, and a right end of the second rotating shaft is in bearing connection with the fifth bearing seat.

When the first rotating wheel and the second rotating wheel are installed, the bearing at the left end of the first rotating wheel is connected with the first bearing seat through the bearing, the bearing at the right end of the first rotating wheel is connected with the fourth bearing seat through the bearing, the bearing at the left end of the second rotating wheel is connected with the second bearing seat through the bearing, the bearing at the right end of the second rotating wheel is connected with the fifth bearing seat through the bearing, and after the bearing and the end cover are matched in place, the end cover and the main speed reducer shell are fixed through the fixing bolt.

As a preferred embodiment, the adjusting ring includes a first adjusting ring and a second adjusting ring, the locking plate includes a first locking plate and a second locking plate, one end of the first adjusting ring is disposed in the fourth bearing seat, the other end of the first adjusting ring is fixedly connected to the end cover through the first locking plate, the first adjusting ring is used for adjusting the bearing play of the first rotating wheel, one end of the second adjusting ring is disposed in the fifth bearing seat, the other end of the second adjusting ring is fixedly connected to the end cover through the second locking plate, and the second adjusting ring is used for adjusting the bearing play of the second rotating wheel.

The first adjusting ring is used for adjusting the play of the bearings at the two ends of the first rotating shaft, the first adjusting ring is fixed through the first locking plate after the first adjusting ring is adjusted in place, the second adjusting ring is used for adjusting the play of the bearings at the two ends of the second rotating shaft, and the second adjusting ring is fixed through the second locking plate after the second adjusting ring is adjusted in place. The design of the adjusting ring cancels the pad selecting process of the bearing pad in the traditional technology, reduces the requirement of consistency of parts, avoids the problem of a transmission system caused by improper pad selection, improves the stability of the system, improves the assembly efficiency and reduces the dependence of product assembly on a special assembly line.

As a preferred embodiment, a spiral water channel is formed between the inner wall of the first connecting part and the outer wall of the driving motor, a plurality of water nozzles are arranged on the side wall of the first connecting part, and the water nozzles are communicated with the water channel.

Water flow is injected into the water channel through the water nozzle, so that the driving motor can be cooled, lubricating oil in the main speed reducer can be cooled, and the normal working temperature of a transmission mechanism in the main speed reducer shell is improved.

In a preferred embodiment, a fixing plate is connected between an outer surface of a side wall of the first connecting portion and a top surface of the second housing, and a first reinforcing rib is provided between the fixing plate and the second housing.

The fixed plate is used for improving the fixed connection between first connecting portion and the second casing, has improved the fixed connection between first casing and the second casing promptly, has reduced because of driving motor vibration, has caused the cracked possibility of taking place between first casing and the second casing. First strengthening rib is used for improving the fixed connectivity between fixed plate and the second casing, has reduced because of driving motor vibration, has caused the cracked possibility of taking place between fixed plate and the second casing.

In a preferred embodiment, second ribs are provided between the outer surface of the side wall of the second connecting portion and the outer surface of the side wall of the first connecting portion, and third ribs are provided between the outer surface of the side wall of the second connecting portion and the top surface of the second housing.

The second strengthening rib is used for improving the fixed connection nature between first connecting portion and the second connecting portion, reduced and driven drive mechanism to rotate because of the motor shaft, and cause the cracked possibility between first connecting portion and the second connecting portion, the third strengthening rib is used for improving the fixed connection nature between second casing and the second connecting portion, has improved the fixed connection nature between second casing and the first casing promptly, reduced and driven drive mechanism to rotate because of the motor shaft, and cause the cracked possibility of taking place between first casing and the second casing.

After the technical scheme is adopted, the invention has the beneficial effects that:

1. the main reducer casing is sleeved outside the driving motor in an interference fit mode, the bolt connection between the motor and the main reducer is omitted, the whole weight is reduced, the rigidity of the main reducer casing is improved, and the NVH optimization design is facilitated.

2. The cylindrical helical tooth type of the transmission mechanism is arranged, so that the contact area between gears is increased, the rigidity of the transmission mechanism is improved, and meanwhile, because the axes of the first rotating wheel, the second rotating wheel and the third rotating wheel are coplanar, the condition of unbalanced bearing force in the transmission process is effectively reduced, and the influence on the rigidity of a shell of the main speed reducer is reduced.

3. Water flow is injected into the water channel through the water nozzle, so that the driving motor can be cooled, lubricating oil in the main speed reducer can be cooled, and the normal working temperature of a transmission mechanism in the main speed reducer shell is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 only 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 structural view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is an exploded view of the present invention;

fig. 4 is a schematic cross-sectional structure of the present invention.

In the figure, 1-drive motor; 2-main reducer casing; 3-a transmission mechanism; 4-a fixing mechanism; 5, locking a nut by a motor; 6, fixing a plate; 7-a first reinforcing rib; 8-a second reinforcing rib; 9-a third reinforcing rib; 10-motor shaft; 20-a first housing; 21-a second housing; 22-a third housing; 23-a water nozzle; 200-a first connection; 201-a second connection portion; 202-a first bearing seat; 203-a second bearing housing; 220-a third bearing seat; 221-an oil collection adjusting ring; 30-a first wheel; 31-a second wheel; 32-a third wheel; 300-a first shaft; 310-a second shaft; 320-a third rotating shaft; 321-high speed bearings; 40-end cap; 41-a first adjusting ring; 42-a second adjustment ring; 43-a first locking tab; 44-a second locking tab; 45-fixing the bolt; 400-a fourth bearing seat; 401-fifth bearing seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, a main reducer assembly integrated with a motor includes a driving motor 1, a transmission mechanism 3, a main reducer case 2, and a fixing mechanism 4.

The right end of the driving motor 1 is provided with a motor shaft 10, and the motor shaft 10 is used for driving the transmission mechanism 3 to rotate.

The transmission mechanism 3 adopts a cylindrical bevel gear train, the transmission mechanism 3 comprises a first rotating wheel 30, a second rotating wheel 31 and a third rotating wheel 32, the axes of the first rotating wheel 30, the second rotating wheel 31 and the third rotating wheel 32 are arranged on the same plane, the first rotating wheel 30 is connected with the motor shaft 10 through splines, meanwhile, the first rotating wheel 30 and the motor shaft 10 are fastened through a motor locking nut 5, the motor shaft 10 drives the first rotating wheel 30 to rotate, the second rotating wheel 31 is arranged at the bottom of the first rotating wheel 30, the second rotating wheel 31 is meshed with the first rotating wheel 30, the outer diameter of the second rotating wheel 31 is larger than that of the first rotating wheel 30, the third rotating wheel 32 is arranged at the bottom of the second rotating wheel 31, the third rotating wheel 32 is meshed with the second rotating wheel 31, and the outer diameter of the third rotating wheel 32 is larger than that of the second rotating wheel 31.

The main reducer shell 2 and the driving motor 1 are in interference fit, and the main reducer shell 2 and the transmission mechanism 3 are in bearing connection.

Fixing mechanism 4 includes end cover 40, adjusting ring and locking plate, and end cover 40 sets up in the right side of main reducer casing 2, and end cover 40 passes through fixed connection between fixing bolt 45 and the main reducer casing 2, and the adjusting ring sets up on main reducer casing 2, threaded connection between the one end of adjusting ring and the drive mechanism 3, and the other end of adjusting ring passes through fixed connection between locking plate and the end cover 40, and the adjusting ring is used for adjusting drive mechanism 3's bearing play.

The outer side of the driving motor 1 is sleeved with the main speed reducer shell 2 in an interference fit mode, bolt connection between the motor and the main speed reducer is omitted, overall weight is reduced, rigidity of the main speed reducer shell 2 is improved, and optimal design of NVH is facilitated. The cylindrical helical tooth type of the transmission mechanism 3 improves the contact area between the gears and the rigidity of the transmission mechanism 3, and meanwhile, because the axes of the first rotating wheel 30, the second rotating wheel 31 and the third rotating wheel 32 are coplanar, the condition of unbalanced bearing stress in the transmission process is effectively reduced, and the influence on the rigidity of the main speed reducer shell 2 is reduced. The first rotating wheel 30, the second rotating wheel 31, the third rotating wheel 32 and the main speed reducer shell 2 are connected through bearings, the end cover 40 is placed on the right side of the main speed reducer shell 2, after the bearings and the end cover 40 are matched in place, the end cover 40 and the main speed reducer shell 2 are fastened through the fixing bolt 45, then the bearing clearance of the transmission mechanism 3 is adjusted through the adjusting ring, and after the bearing clearance is adjusted in place, the adjusting ring is fixed through the locking plate. The driving motor 1 drives the motor shaft 10 to rotate, the motor shaft 10 drives the first rotating wheel 30 to rotate, the first rotating wheel 30 drives the second rotating wheel 31 to rotate, the second rotating wheel 31 drives the third rotating wheel 32 to rotate, and the third rotating wheel 32 transmits power to the wheel end through the half shaft, so that driving is realized.

The main reducer casing 2 comprises a first casing 20, a second casing 21 and a third casing 22 which are integrally arranged, the first casing 20 is arranged at the top of the second casing 21, one end of the first casing 20 is in interference fit with the driving motor 1, the other end of the first casing 20 is in bearing connection with the transmission mechanism 3, the second casing 21 is in plate type arrangement, the third casing 22 is arranged at the bottom of the second casing 21, and the third casing 22 is in bearing connection with the rotation mechanism.

The third housings 22 include two identical third housings 22, the two third housings 22 are respectively disposed at left and right ends of the third wheel 32, the third housing 22 is provided with a third bearing seat 220, a third rotating shaft 320 is disposed in the third wheel 32 through a spline connection, the left and right ends of the third rotating shaft 320 are respectively in bearing connection with the third bearing seat 220, the third housings 22 are used for fixing the third wheel 32, and the third rotating shaft 320 transmits power to a wheel end through a spline connection half shaft, so as to achieve driving.

First casing 20 includes first connecting portion 200 and the second connecting portion 201 of integrative setting, driving motor 1's the outside is located to first connecting portion 200 cover, interference fit between both ends and driving motor 1's the outer wall about first connecting portion 200 inner wall, and be equipped with the sealing washer in interference fit department, be used for improving sealing performance, second connecting portion 201 sets up in the right side of first connecting portion 200, be provided with first bearing frame 202 and second bearing frame 203 in the second connecting portion 201, first bearing frame 202 sets up in the top of second bearing frame 203, first bearing frame 202 is used for fixed first runner 30, second bearing frame 203 is used for fixed second runner 31.

The end cover 40 is provided with a fourth bearing seat 400 and a fifth bearing seat 401, the fourth bearing seat 400 is disposed above the fifth bearing seat 401, the fourth bearing seat 400 is used for fixing the first rotating wheel 30, and the fifth bearing seat 401 is used for fixing the second rotating wheel 31.

The first rotating wheel 30 is internally provided with a first rotating shaft 300 through spline connection, the left end of the first rotating shaft 300 is in bearing connection with the first bearing seat 202, the right end of the first rotating shaft 300 is in bearing connection with the fourth bearing seat 400, the second rotating wheel 31 is internally provided with a second rotating shaft 310 through spline connection, the left end of the second rotating shaft 310 is in bearing connection with the second bearing seat 203, the right end of the second rotating shaft 310 is in bearing connection with the fifth bearing seat 401, when the first rotating wheel 30 and the second rotating wheel 31 are installed, the bearing at the left end of the first rotating wheel 30 is connected with the first bearing seat 202 through a bearing, the bearing at the right end of the first rotating wheel 30 is connected with the fourth bearing seat 400 through a bearing, the bearing at the left end of the second rotating wheel 31 is connected with the second bearing seat 203 through a bearing, and the bearing at the right end of the second rotating wheel 31 is connected with the fifth bearing seat 401 through a bearing, so that the end cover 40 and the main speed reducer shell 2 are fixed through the fixing bolt 45 after the bearings and the end cover 40 are matched in place.

The fixing plate 6 is connected between the outer surface of the side wall of the first connecting portion 200 and the top surface of the second housing 21, the first reinforcing rib 7 is arranged between the fixing plate 6 and the second housing 21, and the fixing plate 6 is used for improving the fixing connection between the first connecting portion 200 and the second housing 21, namely, the fixing connection between the first housing 20 and the second housing 21 is improved, so that the possibility of fracture between the first housing 20 and the second housing 21 caused by vibration of the driving motor 1 is reduced. The first reinforcing ribs 7 are used for improving the fixing connectivity between the fixing plate 6 and the second housing 21, and the possibility of fracture between the fixing plate 6 and the second housing 21 caused by vibration of the driving motor 1 is reduced.

A second reinforcing rib 8 is disposed between the outer surface of the sidewall of the second connecting portion 201 and the outer surface of the sidewall of the first connecting portion 200, and a third reinforcing rib 9 is disposed between the outer surface of the sidewall of the second connecting portion 201 and the top surface of the second housing 21.

The second reinforcing ribs 8 are used for improving the fixed connectivity between the first connecting portion 200 and the second connecting portion 201, the possibility of fracture between the first connecting portion 200 and the second connecting portion 201 caused by the fact that the motor shaft 10 drives the transmission mechanism 3 to rotate is reduced, the third reinforcing ribs 9 are used for improving the fixed connectivity between the second shell 21 and the second connecting portion 201, namely the fixed connectivity between the second shell 21 and the first shell 20 is improved, and the possibility of fracture between the first shell 20 and the second shell 21 caused by the fact that the motor shaft 10 drives the transmission mechanism 3 to rotate is reduced.

The adjusting ring includes a first adjusting ring 41 and a second adjusting ring 42, the locking plate includes a first locking plate 43 and a second locking plate 44, one end of the first adjusting ring 41 is disposed in the fourth bearing seat 400, the other end of the first adjusting ring 41 is fixedly connected with the end cover 40 through the first locking plate 43, the first adjusting ring 41 is used for adjusting the bearing play of the first rotating wheel 30, one end of the second adjusting ring 42 is disposed in the fifth bearing seat 401, the other end of the second adjusting ring 42 is fixedly connected with the end cover 40 through the second locking plate 44, and the second adjusting ring 42 is used for adjusting the bearing play of the second rotating wheel 31.

The first adjusting ring 41 is used for adjusting the play of the bearings at the two ends of the first rotating shaft 300, the first adjusting ring 41 is fixed by the first locking plate 43 after the first adjusting ring is adjusted in place, the second adjusting ring 42 is used for adjusting the play of the bearings at the two ends of the second rotating shaft 310, and the second adjusting ring 42 is fixed by the second locking plate 44 after the second adjusting ring is adjusted in place. The design of the adjusting ring cancels the pad selecting process of the bearing pad in the traditional technology, reduces the requirement of consistency of parts, avoids the problem of a transmission system caused by improper pad selection, improves the stability of the system, improves the assembly efficiency and reduces the dependence of product assembly on a special assembly line.

The inner wall of first connecting portion 200 is provided with the screw thread, and driving motor 1's outer wall is provided with the screw thread, forms the screw-tupe water course between the inner wall of first connecting portion 200 and driving motor 1's the outer wall, is provided with a plurality of water injection well choke 23 on the lateral wall of first connecting portion 200, and water injection well choke 23 and water course are linked together.

During rivers pass through water injection mouth 23 and pour into the water course into, the sealing washer is arranged in reducing the rivers in the water course and from the possibility that main reducer casing 2 left and right sides both ends flow out, and rivers in the water course can cool off driving motor 1, can cool off the lubricating oil in the main reducer again, have improved the normal operating temperature of drive mechanism 3 in the main reducer casing 2.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor integrated type main reducer assembly is characterized by comprising a driving motor, a transmission mechanism, a main reducer shell and a fixing mechanism;

a motor shaft is arranged at the right end of the driving motor and used for driving the transmission mechanism to rotate;

the transmission mechanism is arranged by adopting a cylindrical helical gear and comprises a first rotating wheel, a second rotating wheel and a third rotating wheel, the axes of the first rotating wheel, the second rotating wheel and the third rotating wheel are arranged on the same plane, the first rotating wheel is connected with a motor shaft through a spline, the motor shaft drives the first rotating wheel to rotate, the second rotating wheel is arranged at the bottom of the first rotating wheel, the second rotating wheel is meshed with the first rotating wheel, the outer diameter of the second rotating wheel is larger than that of the first rotating wheel, the third rotating wheel is arranged at the bottom of the second rotating wheel, the third rotating wheel is meshed with the second rotating wheel, and the outer diameter of the third rotating wheel is larger than that of the second rotating wheel;

the main speed reducer shell is in interference fit with the driving motor, and the main speed reducer shell is in bearing connection with the transmission mechanism;

fixing mechanism includes end cover, adjusting ring and locking plate, the end cover sets up in the right side of main reducer casing, the end cover passes through fixed connection between fixing bolt and the main reducer casing, the adjusting ring sets up on the main reducer casing, threaded connection between the one end of adjusting ring and the drive mechanism, the other end of adjusting ring passes through fixed connection between locking plate and the end cover, the adjusting ring is used for adjusting drive mechanism's bearing play.

2. The motor-integrated final drive assembly according to claim 1, wherein the final drive housing includes a first housing, a second housing, and a third housing, the first housing is disposed on a top of the second housing, an interference fit is formed between one end of the first housing and the driving motor, the other end of the first housing is connected to the transmission mechanism through a bearing, the second housing is disposed in a plate shape, the third housing is disposed on a bottom of the second housing, and the third housing is connected to the rotation mechanism through a bearing.

3. The motor-integrated final drive assembly according to claim 2, wherein the third housings include two identical third housings, the two third housings are respectively disposed at left and right ends of the third rotating wheel, the third housing is provided with a third bearing seat, a third rotating shaft is disposed in the third rotating wheel through a spline connection, and the left and right ends of the third rotating shaft are respectively in bearing connection with the third bearing seat.

4. The motor-integrated main reducer assembly according to claim 2, wherein the first housing includes a first connecting portion and a second connecting portion integrally disposed, the first connecting portion is sleeved on an outer side of the driving motor, the left and right ends of an inner wall of the first connecting portion and an outer wall of the driving motor are in interference fit, the second connecting portion is disposed on a right side of the first connecting portion, a first bearing seat and a second bearing seat are disposed in the second connecting portion, and the first bearing seat is disposed above the second bearing seat.

5. The motor-integrated final drive assembly according to claim 4, wherein the end cover is provided with a fourth bearing seat and a fifth bearing seat, and the fourth bearing seat is arranged above the fifth bearing seat.

6. The motor-integrated final drive assembly according to claim 5, wherein the first rotating shaft is disposed in the first rotating wheel through a spline connection, the left end of the first rotating shaft is connected with the first bearing seat through a bearing, the right end of the first rotating shaft is connected with the fourth bearing seat through a bearing, the second rotating shaft is disposed in the second rotating wheel through a spline connection, the left end of the second rotating shaft is connected with the second bearing seat through a bearing, and the right end of the second rotating shaft is connected with the fifth bearing seat through a bearing.

7. The motor-integrated final drive assembly according to claim 5 or 6, wherein the adjusting ring comprises a first adjusting ring and a second adjusting ring, the locking plate comprises a first locking plate and a second locking plate, one end of the first adjusting ring is disposed in the fourth bearing seat, the other end of the first adjusting ring is fixedly connected to the end cover through the first locking plate, the first adjusting ring is used for adjusting a bearing play of the first rotating wheel, one end of the second adjusting ring is disposed in the fifth bearing seat, the other end of the second adjusting ring is fixedly connected to the end cover through the second locking plate, and the second adjusting ring is used for adjusting a bearing play of the second rotating wheel.

8. The motor-integrated final drive assembly according to claim 4, wherein a spiral water channel is formed between an inner wall of the first connecting portion and an outer wall of the driving motor, and a plurality of water nozzles are arranged on a side wall of the first connecting portion and communicated with the water channel.

9. The motor-integrated final drive assembly according to claim 4, wherein a fixing plate is connected between an outer surface of a side wall of the first connecting portion and a top surface of the second housing, and a first reinforcing rib is disposed between the fixing plate and the second housing.

10. The motor-integrated final drive assembly according to claim 4, wherein a second reinforcing rib is disposed between an outer surface of a side wall of the second connecting portion and an outer surface of a side wall of the first connecting portion, and a third reinforcing rib is disposed between an outer surface of a side wall of the second connecting portion and a top surface of the second housing.