CN217643040U

CN217643040U - Novel electric vehicle reduction gearbox body without speed change

Info

Publication number: CN217643040U
Application number: CN202221668179.4U
Authority: CN
Inventors: 苏援农
Original assignee: Xuzhou Longfeng Intelligent Technology Co ltd
Current assignee: Xuzhou Longfeng Intelligent Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-21
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a novel electric motor car reduction gearbox body of infinitely variable, including integration casing, drive assembly, left box, right box, drive assembly and fan housing, left side box passes through bolted connection with right box, integration casing passes through bolted connection respectively with left box and right box, drive assembly is rotatable to be located in left box and the right box, drive assembly links to each other with left box is fixed, the fan housing links to each other with drive assembly is fixed, the rotatable drive assembly setting that runs through of drive assembly. The utility model belongs to electric motor car product manufacturing field specifically indicates a box is fixed on the integrative rear axle body of car, and the gearbox body does not receive the infinitely variable electric motor car gear box of the type of the load weight of car.

Description

Novel electric vehicle reduction gearbox body without speed change

Technical Field

The utility model belongs to electric motor car product manufacturing field specifically indicates a novel infinitely variable electric motor car reduction gear box body.

Background

Electric vehicles use electricity as the driving power, while automobiles rely on oil to provide power. The basic requirements for the motor performance of an electric vehicle are: enough large starting torque, requirements of quick starting, acceleration, climbing, frequent starting and stopping; the speed regulation range of the motor is small; the specific power is large (the specific power is defined as the maximum power which can be provided by unit mass), and the time is counted by the maximum power; the device has the advantages that the device has a rapid torque response characteristic, can rapidly and softly control driving and braking torques in various vehicle speed ranges, and requires high controllability of a motor, good steady-state precision and good dynamic characteristic; the device has good environmental adaptability and can reliably work under different working conditions; the maintenance is simple, and the working noise is low. The basic requirements for the performance of the retarder are: the system has the advantages of reasonable design, high transmission efficiency, low operation sound, short response time and reliable operation at different transmission rotating speeds.

Because the reduction box body of the prior leisure electric vehicle has overlarge volume, wastes raw materials and has high production cost, and the reduction box body is split and not integrated, so that the rear axle body of the electric vehicle is directly stressed on the box body, and the box body is easily damaged.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a box is fixed on the integrative rear axle body of car, and the gearbox does not receive the infinitely variable electric motor car gear box of the type of the load weight of car.

In order to realize the functions, the utility model discloses the technical scheme who takes as follows: a novel speed reduction box body of an electric vehicle without speed change comprises an integrated shell, a transmission component, a left box body, a right box body, a driving component and a fan cover, wherein the left box body is connected with the right box body through bolts, the integrated shell is respectively connected with the left box body and the right box body through bolts, the transmission component is rotatably arranged in the left box body and the right box body, the driving component is fixedly connected with the left box body, the fan cover is fixedly connected with the driving component, the transmission component can rotatably penetrate through the driving component, the driving component comprises a motor end cover, a middle connecting plate, a controller, fan blades, a driving motor and a motor shell, the middle connecting plate is fixedly connected with the left box body, the motor shell is a hollow cavity structure with openings at two ends, the motor shell is fixedly arranged at the top of the middle connecting plate, the driving motor is rotatably arranged in the motor shell, the controller is fixedly arranged in the motor shell, the motor end cover is fixedly arranged at the top of the motor shell, the transmission assembly rotatably penetrates through the middle connecting plate and is fixedly connected with the motor, the transmission assembly rotatably penetrates through the motor end cover and is fixedly connected with the fan blade, the fan cover is fixedly arranged at the top of the motor end cover, the fan blade is rotatably arranged between the fan cover and the motor end cover, the controller is positioned in the motor, cables of the motor are saved, the production cost is reduced, three lines of the motor and 5 Hall signal lines are fixedly connected in the production process, the motor is only connected with a positive electrode and a negative electrode, the assembly is simple and is not easy to make mistakes, the existing controller in the current market is externally connected, three lines are in butt joint when a worker loads the vehicle, and the mistakes are easy to make during the transfer; the design of the fan blades can help the motor to quickly dissipate heat; the design of the integrated shell ensures that the box body is not influenced by the load weight of the vehicle, the service life of the device is prolonged, the rear axle of the existing small leisure vehicle is split, the rear axle and the rear axle are respectively attached to the box body, and the box body is easily damaged by the weight of the whole vehicle.

Further, the transmission assembly comprises a motor shaft, a driving gear, a first transmission gear, a second transmission gear, a differential shell and a third transmission gear, one end of the motor shaft can rotatably penetrate through the first motor shell and is fixedly connected with a fan, the other end of the motor shaft is fixedly connected with the driving gear, the first transmission gear is rotatably connected with the right box body and is meshed with the first transmission gear, the second transmission gear is fixedly connected with the first transmission gear, the differential shell is provided with a left box body and is rotatably connected with the first transmission gear, the third transmission gear is fixedly sleeved on the outer side of the differential shell, the driving motor drives the motor shaft to rotate, the first transmission gear drives the first transmission gear to rotate, the first transmission gear drives the second transmission gear to rotate, and the third transmission gear is driven to rotate through meshing action, so that kinetic energy is transmitted to the wheel through the differential shell.

Preferably, the outer ring of the bearing of the motor shaft is smaller than the inner ring, the arrangement direction is opposite to that of the common bearing on the market, one more bearing is needed for the common motor shaft which is overlong on the market, and the bearing of the motor cannot be replaced when the outer ring of the bearing is larger than the inner ring.

Preferably, the transmission gear is sunken towards the right box body, so that the bearing can be compressed towards the right box body, the structure of the box body is reduced, and the cost is greatly reduced.

Preferably, a locking sheet is fixedly arranged on the differential shell.

Preferably, the motor end cover is arranged in a spherical structure and is inwards sunken, and compared with a planar motor end cover on the market, the motor end cover has good strength and cannot generate resonance.

The utility model adopts the above structure to gain beneficial effect as follows:

1. the gears of the transmission assembly are preferably arranged, so that the number of teeth is reduced, and the stability is better;

2. the controller is positioned in the motor, thereby saving the cable of the motor and reducing the production cost, and three groups of item lines and 5 Hall signal lines of the motor are fixedly connected in the production process, the motor is only connected with the positive electrode and the negative electrode, the assembly is simple and the error is not easy to occur,

3. the design of the fan blades can help the motor to quickly dissipate heat;

4. the design of the integrated shell ensures that the box body is not subjected to the load weight of the vehicle, and the service life of the device is prolonged;

5. the bearing is damaged and replaceable, so that the service life of the device is prolonged;

6. the structure of the box body is reduced, the problem of using aluminum is solved, and the cost is greatly reduced;

7. the motor end cover has good strength and can not generate resonance.

Drawings

FIG. 1 is a structural diagram of a novel non-variable electric vehicle reduction gearbox provided by the present invention;

FIG. 2 is an exploded view of the novel non-variable electric vehicle reduction gearbox provided by the present invention;

FIG. 3 is a structural diagram of a motor end cover of the novel non-variable speed reduction box body of the electric vehicle provided by the present invention;

FIG. 4 is a front view of the transmission assembly of the novel non-shifting electric vehicle reduction gearbox provided by the present invention;

fig. 5 is a bottom view of the transmission assembly of the novel non-variable electric vehicle reduction gear box provided by the present invention.

The device comprises an integrated shell 1, a transmission assembly 2, a left box 3, a right box 4, a driving assembly 5, a driving assembly 6, a fan cover 7, a motor end cover 8, a middle connecting plate 9, a controller 10, fan blades 11, a driving motor 12, a motor shell 13, a motor shaft 14, a driving gear 15, a first transmission gear 16, a second transmission gear 17, a differential shell 18, a third transmission gear 19 and a locking sheet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-2, the utility model provides a novel infinitely variable electric vehicle reduction gearbox body, including integrated casing 1, drive assembly 2, left box 3, right box 4, drive assembly 5 and fan housing 6, left box 3 passes through bolted connection with right box 4, integrated casing 1 passes through bolted connection with left box 3 and right box 4 respectively, drive assembly 2 is rotatable to be located in left box 3 and right box 4, drive assembly 5 is fixed with left box 3 and is linked to each other, fan housing 6 is fixed with drive assembly 5 and is linked to each other, drive assembly 2 is rotatable to run through drive assembly 5 and sets up; drive assembly 5 includes motor end cover 7, well yoke plate 8, controller 9, fan blade 10, driving motor 11 and motor casing 12, well yoke plate 8 is fixed to be located left box 3 top, motor casing 12 is both ends open-ended cavity structure setting, yoke plate 8 top in motor casing 12 is fixed to be located, driving motor 11 is rotatable to be located in motor casing 12, controller 9 is fixed to be located in motor casing 12, motor end cover 7 is fixed to be located at motor casing 12 top, yoke plate 8 links to each other with the motor is fixed during drive assembly 2 is rotatable to run through, drive assembly 2 is rotatable to run through motor end cover 7 and fan blade 10 and is fixed continuous, motor end cover 7 top is fixed to be located to fan housing 6, fan blade 10 is rotatable to be located between fan housing 6 and the motor end cover 7.

As shown in fig. 3, the motor end cover 7 is arranged in a spherical structure and is recessed inwards.

As shown in fig. 4-5, the transmission assembly 2 includes a motor shaft 13, a driving gear 14, a first transmission gear 15, a second transmission gear 16, a differential case 17 and a third transmission gear 18, one end of the motor shaft 13 rotatably penetrates through a fan of the motor case 12 to be fixedly connected, the other end of the motor shaft 13 is fixedly connected with the driving gear 14, the first transmission gear 15 is rotatably connected with the right case 4, the driving gear 14 is meshed with the first transmission gear 15, the second transmission gear 16 is fixedly connected with the first transmission gear 15, the differential case 17 has a left case 3 to be rotatably connected, the third transmission gear 18 is fixedly sleeved outside the differential case 17, an outer ring of a bearing of the motor shaft 13 is smaller than an inner ring, the first transmission gear 15 is recessed towards the right case 4, and a locking piece 19 is fixedly arranged on the differential case 17.

When the device is used specifically, the controller 9 controls the driving motor 11 to move, the driving motor 11 drives the motor shaft 13 to rotate, the driving gear 14 drives the first transmission gear 15 to rotate, the first transmission gear 15 drives the second transmission gear 16 to rotate, and the third transmission gear 18 is driven to rotate through meshing action, so that kinetic energy is transmitted to the wheels through the differential shell 17, and the motor shaft 13 drives the fan blades 10 to rotate, so that the driving motor 13 is helped to dissipate heat quickly; the design of the integrated shell 1 ensures that the box body is not subjected to the load weight of the vehicle, and the service life of the device is prolonged.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a novel infinitely variable electric motor car reduction gear box which characterized in that: including integration casing, drive assembly, left box, right box, drive assembly and fan housing, left side box passes through bolted connection with right box, integration casing passes through bolted connection respectively with left box and right box, drive assembly is rotatable to be located in left box and the right box, drive assembly links to each other with left box is fixed, the fan housing links to each other with drive assembly is fixed, drive assembly is rotatable to run through the drive assembly setting, drive assembly includes motor end cover, well yoke plate, controller, fan blade, driving motor and motor casing, well yoke plate links to each other with left box is fixed, the motor casing is the cavity structure setting of both ends open-ended, the motor casing is fixed to be located well yoke plate top, driving motor is rotatable to be located in the motor casing, the controller is fixed to be located in the motor casing, the motor end cover is fixed to be located the motor casing top, the yoke plate links to each other with the motor is fixed in the rotatable running through of drive assembly, the rotatable motor end cover that runs through of drive assembly links to each other with the fan blade is fixed, the fan housing is fixed to be located at motor end cover top, the fan blade is rotatable to be located between motor end cover and the motor end cover.

2. The new type of speed reducer box for electric vehicle without speed change as claimed in claim 1, wherein: the transmission assembly comprises a motor shaft, a driving gear, a first transmission gear, a second transmission gear, a differential shell and a third transmission gear, wherein one end of the motor shaft is fixedly connected with a fan which can penetrate through the motor shell in a rotating mode, the other end of the motor shaft is fixedly connected with the driving gear, the first transmission gear is rotatably connected with the right box body, the driving gear is meshed with the first transmission gear, the second transmission gear is fixedly connected with the first transmission gear, the differential shell is rotatably connected with the left box body, and the third transmission gear is fixedly connected with the differential shell.

3. The new type of speed reducer box for electric vehicle without speed change as claimed in claim 2, wherein: and the outer ring of the bearing of the motor shaft is smaller than the inner ring.

4. The new type of speed reducer box for electric vehicle without speed change as set forth in claim 3, wherein: the first transmission gear is arranged towards the right and is recessed in the box body.

5. The novel infinitely variable electric vehicle reduction gearbox of claim 4, wherein: and a locking sheet is fixedly arranged on the differential shell.

6. The novel speed reducer casing of the electric vehicle without speed change of claim 5, characterized in that: the motor end cover is arranged in a spherical structure and is inwards sunken.