CN215672459U - Range extender connecting structure and vehicle - Google Patents
Range extender connecting structure and vehicle Download PDFInfo
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- CN215672459U CN215672459U CN202122445363.4U CN202122445363U CN215672459U CN 215672459 U CN215672459 U CN 215672459U CN 202122445363 U CN202122445363 U CN 202122445363U CN 215672459 U CN215672459 U CN 215672459U
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- crankshaft
- housing
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- friction plate
- rotor shaft
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Abstract
The utility model provides a range extender connecting structure, comprising: the spring is an annular spring, the end face of the crankshaft is fixedly connected with the outer side annular face of the spring, the axis of the rotor shaft is overlapped with the axis of the crankshaft, and the inner side annular face of the spring is fixedly connected with the side face, parallel to the axis direction, of the rotor shaft. Therefore, the jumping of the rotor shaft can be reduced, and the service life of the power assembly is prolonged.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a range extender connecting structure and a vehicle.
Background
As new energy vehicles become a new focus of attention and consumer demand, the development of range-extending powertrain vehicles and range extenders has become more sophisticated. The range extender is that the engine only drives the generator to generate power and does not directly participate in wheel driving, so that the working condition of the range extender is completely decoupled from the wheels, the range extender can always run in a high-efficiency area, and the range extender is more economical compared with the traditional fuel vehicle. However, in the related art, the problem of resonance between the generator rotor and the crankshaft end still exists in the use process of the range extender, so that the rotor is easily damaged, and the service life of the power assembly is further influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a range extender connecting structure and a vehicle, and aims to solve the problem that the service life of a power assembly is influenced by the jumping of a rotor of an existing motor.
The utility model provides a range extender connecting structure, comprising: the spring is an annular spring, the end face of the crankshaft is fixedly connected with the outer side annular face of the spring, the axis of the rotor shaft is overlapped with the axis of the crankshaft, and the inner side annular face of the spring is fixedly connected with the side face, parallel to the axis direction, of the rotor shaft.
Optionally, the crankshaft assembly further comprises a friction plate, the friction plate is annular and is arranged on the end surface of the crankshaft, and the spring is located on the inner annular surface of the friction plate;
the first surface of the friction plate is abutted against the end face of the crankshaft, and the inner annular surface of the friction plate is fixedly connected with the outer annular surface of the spring.
Optionally, the crankshaft assembly further comprises a pressure plate, wherein the friction plate is located between the pressure plate and the end face of the crankshaft, the first surface of the friction plate abuts against the end face of the crankshaft, the second surface of the friction plate abuts against the pressure plate, and the first surface of the friction plate and the second surface of the friction plate are opposite to each other.
Optionally, an accommodating groove is formed in an end face of the crankshaft, the accommodating groove is circular, the friction plate is located inside the accommodating groove, the first surface of the friction plate is abutted against the accommodating groove, and an outer annular surface of the friction plate is abutted against a side surface of the accommodating groove;
the pressure plate is abutted against the end face of the crankshaft, and the pressure plate is fixedly connected with the end face of the crankshaft through a bolt;
the shape of friction disc with the storage tank with pressure disk looks adaptation.
Optionally, the rotor shaft comprises an internal spline between an axis-parallel side of the rotor shaft and an inner annulus of the spring;
the inner side of the inner spline is meshed with the side face, parallel to the axis, of the rotor shaft, and the outer side of the inner spline is fixedly connected with the inner side ring face of the spring.
Optionally, the powertrain transmission shaft further includes a first housing, a second housing and a third housing, wherein the second housing is located between the first housing and the third housing, one side of the first housing and one side of the second housing are fixed by a bolt, and the other side of the second housing and the third housing are fixed by a bolt;
the first shell is provided with a first accommodating cavity, the second shell is provided with a second accommodating cavity, the third shell is provided with a third accommodating cavity, and the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are communicated;
the crankshaft is located in the first accommodating cavity, the end face of the crankshaft and the spring are located in the second accommodating cavity, and the rotor shaft is located in the second accommodating cavity and the third accommodating cavity.
Optionally, one end of the rotor shaft, which is far away from the crankshaft, is fixedly connected with the third housing through a rolling bearing, and a side surface of the rotor shaft, which is close to the crankshaft and perpendicular to the axis, is fixedly connected with the communication positions of the second accommodating cavity and the third accommodating cavity through the rolling bearing.
Optionally, the rotor shaft is provided with a rotor, and the third housing is provided with a stator and a conductive shell, wherein:
the rotor is positioned in the third accommodating cavity and is fixedly connected with the rotor shaft;
the rotor, the stator and the conductive shell are positioned on the same horizontal section perpendicular to the axis, the stator is positioned between the conductive shell and the rotor, and the stator is fixed on the inner side of the conductive shell.
The embodiment of the utility model also provides a vehicle which comprises the range extender connecting structure.
One of the above technical solutions has the following advantages or beneficial effects:
in the embodiment of the utility model, the annular spring is arranged between the crankshaft and the rotor shaft, so that the vibration generated during transmission between the crankshaft and the rotor shaft is reduced, the runout of the rotor shaft is reduced, and the service life of the power assembly is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a drive shaft of a powertrain provided in an embodiment of the present invention.
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 some, not all, embodiments of the present invention. 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.
As shown in fig. 1, an embodiment of the present invention provides a range extender connection structure, including: the crankshaft 10, the spring 11 and the rotor shaft 12, wherein the spring 11 is a ring-shaped spring 11, the end surface of the crankshaft 10 is fixedly connected with the outer side ring surface of the spring 11, the axis of the rotor shaft 12 is overlapped with the axis of the crankshaft 10, and the inner side ring surface of the spring 11 is fixedly connected with the side surface of the rotor shaft 12 parallel to the axis direction.
In the embodiment, the crankshaft 10 and the rotor shaft 12 are connected through the spring 11, so that the spring 11 can be used for reducing the vibration when the crankshaft 10 transmits the vibration to the rotor shaft 12, further reducing the bounce of the rotor and prolonging the service life of the power assembly.
For example, when the speed of the crankshaft 10 is faster than the speed of the rotor shaft 12, the spring 11 deforms to absorb part of the kinetic energy conducted by the crankshaft 10; when the speed of the crankshaft 10 is slower than the speed of the rotor shaft 12, the spring 11 is deformed to release the kinetic energy absorbed before. Thus, the transmission effect of the crankshaft 10 and the rotor shaft 12 is improved by the deformation of the spring 11, and the vibration of the rotor shaft 12 is reduced.
Optionally, the crankshaft structure further comprises a friction plate 13, the friction plate 13 is annular, the friction plate 13 is arranged on the end face of the crankshaft 10, and the spring 11 is located on the inner annular surface of the friction plate 13;
a first surface of the friction plate 13 abuts against an end surface of the crankshaft 10, and an inner annular surface of the friction plate 13 is fixedly connected to an outer annular surface of the spring 11.
In the present embodiment, the first surface of the friction plate 13 abuts against the end surface of the crankshaft 10 to solve the problem of overload that may occur in the crankshaft 10.
Specifically, during the transmission of crankshaft 10 and rotor shaft 12, if crankshaft 10 suddenly accelerates beyond a specified load, rotor shaft 12 may also overrun and become overloaded, resulting in damage. Through setting up the friction disc 13 with the terminal surface butt of bent axle 10, can produce relative slip between the terminal surface of bent axle 10 and friction disc 13 and in order to reduce the kinetic energy when transmitting, make the transmission can steady go on, avoid rotor shaft 12 because of the damage that overload probably appears.
Optionally, a pressure plate 14 is further included, wherein the friction plate 13 is located between the pressure plate 14 and the end surface of the crankshaft 10, a first surface of the friction plate 13 abuts against the end surface of the crankshaft 10, a second surface of the friction plate 13 abuts against the pressure plate 14, and the first surface of the friction plate 13 and the second surface of the friction plate 13 are opposite.
In the present embodiment, the friction plate 13 is in contact with the end face of the crankshaft 10 by the pressure plate 14, so that the friction plate 13 is continuously in contact with the end face of the crankshaft 10 during the transmission of the crankshaft 10 and the rotor shaft 12, thereby achieving the effect of continuous transmission.
Optionally, an end face of the crankshaft 10 is provided with an accommodating groove 101, the accommodating groove 101 is set to be circular, the friction plate 13 is located inside the accommodating groove 101, a first surface of the friction plate 13 abuts against the accommodating groove 101, and an outer annular surface of the friction plate 13 abuts against a side surface of the accommodating groove 101;
the pressure plate 14 is abutted against the end face of the crankshaft 10, and the pressure plate 14 is fixedly connected with the end face of the crankshaft 10 through a bolt;
the friction plate 13 is shaped to fit the receiving groove 101 and the pressure plate 14.
In the present embodiment, the friction plate 13 is installed in the accommodating groove 101 to solve the problem of vibration of the friction plate 13 during the transmission process.
Specifically, the friction plate 13 generates a centrifugal force away from the spring 11 during the transmission, so that the friction plate 13 tends to move away from the spring 11. The friction plate 13 is arranged in the accommodating groove 101, so that the outer annular surface of the friction plate 13 is abutted against the side surface of the accommodating groove 101, and the pressure generated by the abutment is balanced with the centrifugal force, thereby solving the problem of possible vibration of the friction plate 13 in the transmission process.
In addition, the pressure plate 14 and the end face of the crankshaft 10 are fixed by bolts, so that the friction plate 13 can be replaced easily.
Optionally, the rotor shaft 12 includes internal splines 121, the internal splines 121 being located between the side of the rotor shaft 12 parallel to the axis and the inner annular surface of the spring 11;
the inner side of the internal spline 121 is engaged with the side surface of the rotor shaft 12 parallel to the axis, and the outer side of the internal spline 121 is connected and fixed with the inner side ring surface of the spring 11.
In the present embodiment, the spring 11 and the rotor shaft 12 are connected by the internal spline 121, so that the rotor shaft 12 can be easily removed, and the maintenance worker can conveniently check the rotor shaft 12 at regular intervals.
Optionally, the powertrain transmission shaft further includes a first housing 15, a second housing 16 and a third housing 17, wherein the second housing 16 is between the first housing 15 and the third housing 17, one side of the first housing 15 and one side of the second housing 16 are fixed by a bolt, and the other side of the second housing 16 and the third housing 17 are fixed by a bolt;
the first shell 15 is provided with a first accommodating cavity, the second shell 16 is provided with a second accommodating cavity, the third shell 17 is provided with a third accommodating cavity, and the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are communicated;
the crankshaft 10 is located in the first accommodating cavity, the end face of the crankshaft 10 and the spring 11 are located in the second accommodating cavity, and the rotor shaft 12 is located in the second accommodating cavity and the third accommodating cavity.
In this embodiment, the first housing 15, the second housing 16 and the third housing 17 are provided, so that the power assembly transmission shaft can be conveniently detached, and the maintenance personnel can check and replace parts more conveniently.
In addition, the provision of the first, second and third housings 15, 16 and 17 prevents external dust from entering the transmission shaft, reducing damage that may occur due to dust.
Optionally, one end of the rotor shaft 12, which is far away from the crankshaft 10, is connected and fixed with the third housing 17 through a rolling bearing, and a communication position between a side surface of the rotor shaft 12, which is close to the crankshaft 10 and perpendicular to the axis, and the second accommodating cavity and the third accommodating cavity is connected and fixed through a rolling bearing.
In this embodiment, the rotor shaft 12 is fixed to the third housing 17, so that the rotor shaft 12 rotates relative to the third housing 17 during the transmission process, thereby improving the stability of the rotor shaft 12 and reducing the vibration problem that may occur due to the movement of the rotor shaft 12 itself.
Alternatively, the rotor shaft 12 is provided with a rotor 122, and the third housing 17 is provided with a stator 123 and a conductive shell 171, wherein:
the rotor 122 is located in the third accommodating cavity and is fixedly connected with the rotor shaft 12;
the rotor 122, the stator 123 and the conductive housing 171 are located on the same cross-sectional level perpendicular to the axis, the stator 123 is located between the conductive housing 171 and the rotor 122, and the stator 123 is fixed inside the conductive housing 171.
In this embodiment, the kinetic energy of the rotor shaft 12 during the transmission process is converted into electric energy through the rotor 122 and the stator 123, and then the electric energy is transmitted out through the conductive housing 171.
The embodiment of the utility model also provides a vehicle which comprises the range extender connecting structure.
It should be noted that, the implementation manner of the embodiment of the range extender connecting structure is also applicable to the embodiment of the vehicle, and the same technical effect can be achieved, and no further description is provided herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (9)
1. A range extender connecting structure, comprising: the spring is an annular spring, the end face of the crankshaft is fixedly connected with the outer side annular face of the spring, the axis of the rotor shaft is overlapped with the axis of the crankshaft, and the inner side annular face of the spring is fixedly connected with the side face, parallel to the axis direction, of the rotor shaft.
2. The range extender coupling structure of claim 1, further comprising a friction plate, wherein said friction plate is configured in an annular shape and is disposed on an end surface of said crankshaft, and said spring is disposed on an inner annular surface of said friction plate;
the first surface of the friction plate is abutted against the end face of the crankshaft, and the inner annular surface of the friction plate is fixedly connected with the outer annular surface of the spring.
3. The range extender coupling structure of claim 2, further comprising a pressure plate, wherein the friction plate is positioned between the pressure plate and the end face of the crankshaft, and wherein a first surface of the friction plate abuts the end face of the crankshaft and a second surface of the friction plate abuts the pressure plate, the first surface of the friction plate and the second surface of the friction plate being opposite.
4. The range extender coupling structure of claim 3, wherein the end face of the crankshaft is provided with an accommodating groove, the accommodating groove is provided in a circular shape, the friction plate is located inside the accommodating groove, a first surface of the friction plate abuts against the accommodating groove, and an outer annular surface of the friction plate abuts against a side surface of the accommodating groove;
the pressure plate is abutted against the end face of the crankshaft, and the pressure plate is fixedly connected with the end face of the crankshaft through a bolt;
the shape of friction disc with the storage tank with pressure disk looks adaptation.
5. The range extender coupling structure of claim 1, wherein the rotor shaft includes an internal spline between an axially parallel side of the rotor shaft and an inner annular surface of the spring;
the inner side of the inner spline is meshed with the side face, parallel to the axis, of the rotor shaft, and the outer side of the inner spline is fixedly connected with the inner side ring face of the spring.
6. The range extender coupling structure of claim 1, further comprising a first housing, a second housing and a third housing, wherein the second housing is between the first housing and the third housing, one side of the first housing and the second housing is fixed by bolting, and the other side of the second housing and the third housing is fixed by bolting;
the first shell is provided with a first accommodating cavity, the second shell is provided with a second accommodating cavity, the third shell is provided with a third accommodating cavity, and the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are communicated;
the crankshaft is located in the first accommodating cavity, the end face of the crankshaft and the spring are located in the second accommodating cavity, and the rotor shaft is located in the second accommodating cavity and the third accommodating cavity.
7. The range extender connecting structure according to claim 6, wherein one end of the rotor shaft, which is far away from the crankshaft, is fixedly connected with the third housing through a rolling bearing, and a communication position between a side surface of the rotor shaft, which is close to the crankshaft and perpendicular to the axis, and the second accommodating chamber and the third accommodating chamber is fixedly connected through a rolling bearing.
8. The range extender coupling structure of claim 7, wherein said rotor shaft is provided with a rotor, and said third housing is provided with a stator and a conductive shell, wherein:
the rotor is positioned in the third accommodating cavity and is fixedly connected with the rotor shaft;
the rotor, the stator and the conductive shell are positioned on the same horizontal section perpendicular to the axis, the stator is positioned between the conductive shell and the rotor, and the stator is fixed on the inner side of the conductive shell.
9. A vehicle, characterized in that the vehicle comprises a range extender coupling structure according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122445363.4U CN215672459U (en) | 2021-10-11 | 2021-10-11 | Range extender connecting structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122445363.4U CN215672459U (en) | 2021-10-11 | 2021-10-11 | Range extender connecting structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215672459U true CN215672459U (en) | 2022-01-28 |
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ID=79968033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122445363.4U Active CN215672459U (en) | 2021-10-11 | 2021-10-11 | Range extender connecting structure and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215672459U (en) |
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2021
- 2021-10-11 CN CN202122445363.4U patent/CN215672459U/en active Active
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