CN215897434U - Single-motor electric power system - Google Patents
Single-motor electric power system Download PDFInfo
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- CN215897434U CN215897434U CN202121809506.9U CN202121809506U CN215897434U CN 215897434 U CN215897434 U CN 215897434U CN 202121809506 U CN202121809506 U CN 202121809506U CN 215897434 U CN215897434 U CN 215897434U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model provides a single-motor electric power system, which is characterized in that a gearbox is integrally arranged at one end side of a motor rotating shaft, a transmission output gear is arranged at the other end of the motor rotating shaft, and a power take-off port of a power take-off is reserved, so that the whole system is simple in arrangement, and the manufacturing cost is reduced. It includes: the motor comprises a motor shell, a stator, a rotor and a rotating shaft; the gearbox comprises a gearbox shell, an input shaft, an output shaft, an intermediate shaft and corresponding transmission gears; the motor casing is internally provided with a first cavity and a second cavity, a stator is fixedly arranged in the first cavity, a rotating shaft is positioned in the central area of the stator and is arranged in a penetrating manner, a rotor is sleeved on the rotating shaft corresponding to the axial position of the stator, one end of the rotating shaft extends into the second cavity and is fixedly sleeved with a large gear, at least one area of the second cavity corresponding to the annular wall of the large gear is provided with a power take-off port, and the power take-off port is used for being meshed with the large gear after the power take-off is installed and penetrates through the power take-off port through a power take-off gear.
Description
Technical Field
The utility model relates to the technical field of pure electric power systems, in particular to a single-motor electric power system.
Background
The existing single-motor electric power system applicable to the electric vehicle is characterized in that a motor and a gearbox of the existing single-motor electric power system are independently arranged, the output end of the motor is connected with the input end of the gearbox through a transmission structure, when an additional power takeoff is needed to be arranged, the output end of the motor needs to be connected with the power takeoff through another group of transmission structures additionally arranged, the arrangement of the single-motor electric power system is complex, and the manufacturing cost is increased.
Disclosure of Invention
In order to solve the problems, the utility model provides a single-motor electric power system, wherein a gearbox is integrally arranged at one end side of a motor rotating shaft, a transmission output gear is arranged at the other end of the motor rotating shaft, and a power take-off port of a power take-off is reserved, so that the whole system is simple in arrangement, and the manufacturing cost is reduced.
A single motor electric powertrain, comprising:
the motor comprises a motor shell, a stator, a rotor and a rotating shaft;
the gearbox comprises a gearbox shell, an input shaft, an output shaft, an intermediate shaft and corresponding transmission gears;
the motor comprises a motor shell, a rotor, a power takeoff hole, a power takeoff engaging gear and a motor shaft, wherein the motor shell comprises a first cavity and a second cavity, a stator is fixedly arranged in the first cavity, the rotating shaft is positioned in the central area of the stator and is arranged in a penetrating manner, the rotor is sleeved on the rotating shaft corresponding to the axial position of the stator, one end of the rotating shaft extends into the second cavity and is fixedly sleeved with a large gear, the power takeoff hole is formed in at least one area of the second cavity corresponding to the annular wall of the large gear, and the power takeoff hole is used for enabling the power takeoff engaging gear to penetrate through the power takeoff hole and be engaged with the large gear after the power takeoff is installed;
the other end face of the rotating shaft is concave to form a central positioning hole;
the other axial end of the motor shell is fixedly connected with a gearbox shell, the input shaft and the output shaft are coaxially arranged, the input end side of the input shaft is protruded to a corresponding end plate of the gearbox shell, and the input end of the input shaft penetrates through the corresponding end plate of the motor shell and then is inserted into and positioned in the central positioning hole.
It is further characterized in that:
an inner concave positioning hole is formed in the end face, located in the gearbox shell, of the input shaft, one end of the output shaft is positioned in the inner concave positioning hole through a bearing, and the other axial end of the output shaft penetrates through the other end plate of the gearbox shell and is convex at the back side for power output;
at least two intermediate shafts which are in synchronous transmission are arranged in the gearbox shell, so that stable and reliable power transmission is ensured;
a plurality of groups of gear shifting forks are further arranged in the gearbox shell, and each group of gear shifting forks are respectively and correspondingly provided with a gear sleeve and a gear seat, so that the gear shifting of the gearbox is accurately and reliably carried out;
two axial ends of the rotating shaft are assembled at the corresponding end covers of the motor shell through bearings respectively, so that the stable and reliable arrangement of the rotating shaft is ensured;
the end cover of the motor shell close to the power take-off opening is a front end cover, the end cover far away from the power take-off opening is a rear end cover, the end cover of the gearbox shell close to the motor shell is a front end cover, the end cover far away from the motor shell is a rear end cover, a central area of the rear end face of the rear end cover is concave to form a contraposition central groove, a position of the front end cover facing the central groove is convex forwards to form an inserting positioning bulge, and the inserting positioning bulge is inserted into the central groove to complete rapid positioning and assembling of the whole structure.
After the technical scheme is adopted, the large gear is fixedly sleeved in the second cavity at one end of the rotating shaft of the motor, the power take-off port is arranged in at least one area of the second cavity, corresponding to the annular wall of the large gear, and is used for connecting the large gear after the power take-off is installed and the power take-off meshing gear penetrates through the power take-off port in a meshing manner; the direct cartridge of one end of motor shaft connects the input shaft of the gearbox of coaxial setting, and the axial other end rigid coupling of motor casing has the gearbox casing, and it is integrated arranging the gearbox, setting up transmission output gear at the other end of motor shaft in the one end side of motor shaft, and reserves the power takeoff mouth of power takeoff for entire system's arranging is simple, and has reduced manufacturing cost.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the power take-off device comprises a motor 10, a motor shell 11, a front end cover 111, a rear end cover 112, a stator 12, a rotor 13, a rotating shaft 14, a central positioning hole 141, a first cavity 15, a second cavity 16, a large gear 17, a power take-off port 18, a gearbox 20, a gearbox shell 21, an input shaft 22, a concave positioning hole 221, an output shaft 23, an intermediate shaft 24, a transmission gear 25, a front end cover 26, an insertion positioning bulge 261, a rear end cover 27, a power take-off 30, a power take-off meshing gear 31, a flange plate 40, a shifting fork 50, a gear sleeve 51 and a gear seat 52.
Detailed Description
A single motor electric powertrain, fig. 1, includes a motor 10, a transmission 20;
the motor 10 comprises a motor shell 11, a stator 12, a rotor 13 and a rotating shaft 14;
the gearbox 20 comprises a gearbox shell 21, an input shaft 22, an output shaft 23, an intermediate shaft 24 and a corresponding transmission gear 25;
the motor shell 11 comprises a first cavity 15 and a second cavity 16, the second cavity 16 is arranged at the front part of the first cavity 15, a stator 12 is fixedly arranged in the first cavity 15, a rotating shaft 14 is positioned in the central area of the stator 12 and is arranged in a penetrating manner, a rotor 13 is sleeved on the rotating shaft 14 corresponding to the axial position of the stator 12, the front end of the rotating shaft 14 extends into the second cavity 16 and is fixedly sleeved with a large gear 17, the front end of the rotating shaft 14 is in interference fit with the large gear 17 and is locked by an assembly key structure, a power take-off port 18 is arranged on the second cavity 16 corresponding to the lower area of the annular wall of the large gear 17, and the power take-off port 18 is used for connecting the large gear 17 in a meshing manner after a power take-off 30 is installed and a power take-off meshing gear 31 penetrates through the power take-off port 18; when the power takeoff 30 needs to be installed, the power takeoff 30 is directly and fixedly installed at the position, corresponding to the motor shell 11, of the power takeoff 18, a power takeoff meshing gear 31 of the power takeoff 30 is meshed and connected with the large gear 17, and a gear engaging structure is arranged in the power takeoff 30;
the other end face of the rotating shaft 14 is concave to form a central positioning hole 141;
the other axial end of the motor housing 11 is fixedly connected with a transmission case 21, an input shaft 22 and an output shaft 23 are coaxially arranged, the input end side of the input shaft 22 is protruded to a front end plate 26 of the transmission case 20, and the input end of the input shaft 22 passes through a rear end plate 112 of the motor housing and then is inserted into and positioned in a center positioning hole 141.
In specific implementation, an end face of the input shaft 22, which is located in the transmission case 21, is provided with an inward concave positioning hole 221, one end of the output shaft 23 is positioned in the inward concave positioning hole 221 through a bearing, and the other axial end of the output shaft 23 penetrates through the rear side of the other end plate of the transmission case 21 to be convex and fixedly connected with the flange plate 40 for power output;
two intermediate shafts 24 for synchronous transmission are arranged in the gearbox shell 21, and the two intermediate shafts 24 are annularly distributed on the outer circumferences of the output shaft 23 and the input shaft 22, so that stable and reliable power transmission is ensured;
a plurality of groups of shifting forks 50 are further arranged in the gearbox shell 21, and each group of shifting forks 50 respectively corresponds to a gear sleeve 51 and a gear seat 52, so that the gear shifting of the gearbox can be accurately and reliably carried out;
two axial ends of the rotating shaft 14 are assembled at the corresponding end covers of the motor shell 21 through bearings respectively, so that the stable and reliable arrangement of the rotating shaft is ensured;
the end cover of the motor shell 21 close to the power take-off port 18 is a front end cover 111, the end cover far away from the power take-off port 18 is a rear end cover 112, the end cover of the gearbox shell 21 close to the motor shell 11 is a front end cover 26, the end cover far away from the motor shell 11 is a rear end cover 27, the central area of the rear end face of the rear end cover 112 is concave to form a contraposition central groove, the front end cover 26 is convex forwards towards the central groove to form an insertion positioning bulge 261, and the insertion positioning bulge 261 is inserted into the central groove to complete the rapid positioning assembly of the whole structure.
The working principle is as follows, the rotating shaft and the large gear are in interference fit and are provided with keys, a power take-off port is reserved on the motor shell, and the power take-off device is directly installed on the motor shell. When the power takeoff needs to be stopped and the power takeoff needs to be stopped, the power takeoff is shifted after the gearbox is in a neutral position, the motor outputs power to the power takeoff, and the power takeoff drives the gear pump to work and further outputs power; when the power is required to be taken by the vehicle, the gearbox is in a gear position, the power takeoff is in a gear shift, the motor respectively outputs power to the power takeoff and the gearbox, the power takeoff drives the gear pump to work and further outputs power, and the gearbox outputs power to the whole vehicle to run; one end of a rotating shaft of the motor is fixedly sleeved with a large gear corresponding to the second cavity, at least one area of the second cavity corresponding to the annular wall of the large gear is provided with a power take-off port, and the power take-off port is used for connecting the large gear after the power take-off is installed and a power take-off meshing gear penetrates through the power take-off port in a meshing manner; the direct cartridge of one end of motor shaft connects the input shaft of the gearbox of coaxial setting, and the axial other end rigid coupling of motor casing has the gearbox casing, and it is integrated arranging the gearbox, setting up transmission output gear at the other end of motor shaft in the one end side of motor shaft, and reserves the power takeoff mouth of power takeoff for entire system's arranging is simple, and has reduced manufacturing cost. The power system has a compact structure, and the power takeoff is arranged on the motor shell; through a control program, a multi-mode working state can be realized; the transmission power takeoff system can be replaced, the structure is simple, and the transmission power takeoff system can be realized by adding a gear at the front end of the traditional permanent magnet synchronous motor.
The beneficial effects are as follows: the power takeoff and the gearbox of the system can work independently or simultaneously, and can be matched with vehicle models in more ranges; the system can be used for a pure electric system, and an engine can be added for a hybrid system; the motor is large in high-performance area, and the power takeoff is wider in application range than a traditional vehicle type.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A single motor electric powertrain, comprising:
the motor comprises a motor shell, a stator, a rotor and a rotating shaft;
the gearbox comprises a gearbox shell, an input shaft, an output shaft, an intermediate shaft and corresponding transmission gears;
the motor comprises a motor shell, a rotor, a power takeoff hole, a power takeoff engaging gear and a motor shaft, wherein the motor shell comprises a first cavity and a second cavity, a stator is fixedly arranged in the first cavity, the rotating shaft is positioned in the central area of the stator and is arranged in a penetrating manner, the rotor is sleeved on the rotating shaft corresponding to the axial position of the stator, one end of the rotating shaft extends into the second cavity and is fixedly sleeved with a large gear, the power takeoff hole is formed in at least one area of the second cavity corresponding to the annular wall of the large gear, and the power takeoff hole is used for enabling the power takeoff engaging gear to penetrate through the power takeoff hole and be engaged with the large gear after the power takeoff is installed;
the other end face of the rotating shaft is concave to form a central positioning hole;
the other axial end of the motor shell is fixedly connected with a gearbox shell, the input shaft and the output shaft are coaxially arranged, the input end side of the input shaft is protruded to a corresponding end plate of the gearbox shell, and the input end of the input shaft penetrates through the corresponding end plate of the motor shell and then is inserted into and positioned in the central positioning hole.
2. The single motor electric power system of claim 1, wherein: the end face of the input shaft, which is positioned in the gearbox shell, is provided with an inwards concave positioning hole, one end of the output shaft is positioned in the inwards concave positioning hole through a bearing, and the other axial end of the output shaft penetrates through the other end plate of the gearbox shell and is convex at the back side for power output.
3. The single motor electric power system of claim 1, wherein: at least two synchronous transmission intermediate shafts are arranged in the gearbox shell.
4. The single motor electric power system of claim 1, wherein: a plurality of groups of shifting forks are further arranged in the gearbox shell, and each group of shifting forks are respectively and correspondingly provided with a gear sleeve and a gear seat.
5. The single motor electric power system of claim 1, wherein: and the two axial ends of the rotating shaft are assembled at the positions of the corresponding end covers of the motor shell through bearings respectively.
6. The single motor electric power system of claim 1, wherein: the end cover of the motor shell close to the power take-off opening is a front end cover, the end cover far away from the power take-off opening is a rear end cover, the end cover of the gearbox shell close to the motor shell is a front end cover, the end cover far away from the motor shell is a rear end cover, a central area of the rear end face of the rear end cover is concave to form a contraposition central groove, a position of the front end cover facing the central groove is convex forwards to form an insertion positioning bulge, and the insertion positioning bulge is inserted in the central groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121809506.9U CN215897434U (en) | 2021-08-04 | 2021-08-04 | Single-motor electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121809506.9U CN215897434U (en) | 2021-08-04 | 2021-08-04 | Single-motor electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215897434U true CN215897434U (en) | 2022-02-22 |
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ID=80502013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121809506.9U Active CN215897434U (en) | 2021-08-04 | 2021-08-04 | Single-motor electric power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215897434U (en) |
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2021
- 2021-08-04 CN CN202121809506.9U patent/CN215897434U/en active Active
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