Driving device and vehicle

Abstract

The utility model provides a driving device and a vehicle, relates to the technical field of vehicle parts, and aims to solve the problem that the vehicle NVH performance is poor. The driving device comprises a driving assembly, a driving shaft, a first flange and a second flange, the driving assembly comprises a power output shaft, the first flange is provided with a first through hole, the second flange is provided with a second through hole, the driving shaft is sleeved with the first flange through the first through hole, and the driving shaft is sleeved with the second flange through the second through hole. The driving shaft is fixedly connected with the first flange, the power output shaft is sleeved with the second flange through the second through hole, and the power output shaft is connected with the second flange; the first end face of the first flange and the first end face of the second flange are oppositely arranged, the first flange is fixedly connected with the second flange, one of the first end face of the first flange and the first end face of the second flange is provided with a positioning protrusion, the other one of the first end face of the first flange and the first end face of the second flange is provided with a positioning groove, and the positioning protrusion is embedded in the positioning groove. The NVH performance of the vehicle can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle parts, and in particular to a driving device and a vehicle. Background Art

[0002] Modern automobile drive axles have a variety of connection forms. Among them, the flange form, due to the use of bolts for positioning, will produce rotational eccentricity, generate large unbalanced forces, and make the vehicle noise, vibration, and harshness (NVH) performance worse. In recent years, the powertrain or motor capacity has been improved, which has increased the torque and speed of the drive axle. This problem has become increasingly prominent, resulting in poor NVH performance of the vehicle. Utility Model Content

[0003] The embodiments of the present application provide a driving device and a vehicle to solve the problem of poor NVH performance of the vehicle.

[0004] To solve the above technical problems, this application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a driving device, including a driving assembly and a driving shaft, a first flange and a second flange, wherein the driving assembly includes a power output shaft, the first flange is provided with a first through hole, the second flange is provided with a second through hole, the first flange is sleeved on the driving shaft through the first through hole, the driving shaft is fixedly connected to the first flange, the second flange is sleeved on the power output shaft through the second through hole, and the power output shaft is connected to the second flange;

[0006] The first end face of the first flange is arranged opposite to the first end face of the second flange, and the first flange is fixedly connected to the second flange. One of the first end face of the first flange and the first end face of the second flange is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is embedded in the positioning groove.

[0007] In a second aspect, an embodiment of the present application further provides a vehicle, comprising a drive device as described in the first aspect, wherein the drive shaft is used to drive the wheels to rotate.

[0008] In an embodiment of the present application, the drive device includes a drive component and a drive shaft, a first flange and a second flange, the drive component includes a power output shaft, the first flange is provided with a first through hole, the second flange is provided with a second through hole, the first flange is sleeved on the drive shaft through the first through hole, the drive shaft is fixedly connected to the first flange, the second flange is sleeved on the power output shaft through the second through hole, the power output shaft is connected to the second flange, the first end face of the first flange is arranged opposite to the first end face of the second flange, and the first flange is fixedly connected to the second flange, one of the first end face of the first flange and the first end face of the second flange is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is embedded in the positioning groove, so that the first flange and the second flange can be embedded in the positioning groove to strengthen the connection between the two, thereby reducing the rotational eccentric force between the first flange and the second flange, thereby improving the NVH performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0010] Figure 1 is a schematic structural diagram of a driving device provided in an embodiment of the present application;

[0011] Figure 2 This is one of the structural schematic diagrams of a drive shaft and a first flange provided in an embodiment of the present application;

[0012] Figure 3 This is the second structural schematic diagram of a drive shaft and a first flange provided in an embodiment of the present application. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0014] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0015] See also Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of a driving device provided in an embodiment of the present application, Figure 2 is one of the structural schematic diagrams of a drive shaft and a first flange provided in an embodiment of the present application, such as Figure 1 and Figure 2 As shown, the driving device comprises a driving assembly 100 and a driving shaft 200, a first flange 300 and a second flange 400, the driving assembly 100 comprises a power output shaft 110, the first flange 300 is provided with a first through hole, the second flange 400 is provided with a second through hole, the first flange 300 is sleeved on the driving shaft 200 through the first through hole, the driving shaft 200 is fixedly connected to the first flange 300, the second flange 400 is sleeved on the power output shaft 110 through the second through hole, and the power output shaft 110 is connected to the second flange 400;

[0016] The first end face of the first flange 300 is arranged opposite to the first end face of the second flange 400, and the first flange 300 is fixedly connected to the second flange 400. One of the first end face of the first flange 300 and the first end face of the second flange 400 is provided with a positioning protrusion 310, and the other is provided with a positioning groove, and the positioning protrusion 310 is embedded in the positioning groove.

[0017] Specifically, the driving assembly 100 includes a driving member and a reducer of the vehicle, the power output end of the driving member is connected to the power input end of the reducer, and the power output end of the reducer forms the power output end of the driving assembly 100, wherein the driving member may be the engine of the vehicle, and the reducer may be the main reducer. The driving shaft 200 may be a driving half shaft of the vehicle, used to drive the wheels to rotate to drive the vehicle forward.

[0018] The first flange 300 is sleeved on the drive shaft 200 through the first through hole. The drive shaft 200 and the first flange 300 may be formed into a single integral body through a forging process, or the first flange 300 may be welded to the drive shaft 200, and the two are fixedly connected to prevent displacement. The power output shaft 110 and the second flange 400 may be detachably connected through a spline so that other connection ports can be replaced.

[0019] One of the above is provided with a positioning protrusion 310, and the other is provided with a positioning groove. The first flange 300 may be provided with a positioning protrusion 310 and the second flange 400 may be provided with a positioning groove, or the second flange 400 may be provided with a positioning protrusion 310 and the first flange 300 may be provided with a positioning groove.

[0020] In the embodiment of the present application, the drive device includes a drive component 100 and a drive shaft 200, a first flange 300 and a second flange 400, the drive component 100 includes a power output shaft 110, the first flange 300 is provided with a first through hole, the second flange 400 is provided with a second through hole, the first flange 300 is sleeved on the drive shaft 200 through the first through hole, the drive shaft 200 is fixedly connected to the first flange 300, the second flange 400 is sleeved on the power output shaft 110 through the second through hole, the power output shaft 110 is connected to the second flange 400, and the first flange 300 is sleeved on the power output shaft 110 through the second through hole. One end face is arranged opposite to the first end face of the second flange 400, and the first flange 300 is fixedly connected to the second flange 400. One of the first end face of the first flange 300 and the first end face of the second flange 400 is provided with a positioning protrusion 310, and the other is provided with a positioning groove, and the positioning protrusion 310 is embedded in the positioning groove, so that the first flange 300 and the second flange 400 can be embedded in the positioning groove to strengthen the connection between the two, thereby reducing the rotational eccentric force between the first flange 300 and the second flange 400, thereby improving the NVH performance of the vehicle.

[0021] Optionally, the first end surface of the first flange 300 is provided with the positioning protrusion 310 , and the positioning protrusion 310 is arranged around the first through hole.

[0022] Specifically, the first end face of the first flange 300 may be the end face of the first flange 300 facing the second flange 400, and the first end face of the first flange 300 is provided with the positioning protrusion 310, which may be a structure integrally formed by forging. The positioning protrusion 310 is arranged around the first through hole, and the positioning protrusion 310 may be designed according to the shape of the first through hole, that is, an arc-shaped protrusion, or the positioning protrusion 310 may be arranged in sequence according to the shape of the first through hole.

[0023] In this embodiment, the first end face of the first flange 300 is provided with the positioning protrusion 310, and the positioning protrusion 310 is arranged around the first through hole, so that the positioning force of the first through hole is more uniform, thereby further improving the stability of the connection between the first flange 300 and the second flange 400.

[0024] Optionally, the first end surface of the second flange 400 is provided with the positioning groove, and the positioning groove is arranged around the second through hole.

[0025] Specifically, the first end face of the second flange 400 may be the end face of the second flange 400 facing the first flange 300, and the first end face of the second flange 400 is provided with the positioning groove, which may be a structure integrally formed by forging. The positioning groove surrounding the second through hole may be designed according to the shape of the second through hole, that is, an arc-shaped groove, or the positioning grooves may be arranged in sequence according to the shape of the second through hole. It should be noted that the shapes of the positioning groove and the positioning protrusion 310 match.

[0026] In this embodiment, the first end face of the second flange 400 is provided with the positioning groove, and the positioning groove is arranged around the second through hole, so that the positioning force of the second through hole is more uniform, thereby further improving the stability of the connection between the first flange 300 and the second flange 400.

[0027] Optionally, the first flange 300 is provided with at least two first threaded holes 320, and the at least two first threaded holes 320 are arranged around the first through hole;

[0028] The second flange 400 is provided with at least two second threaded holes corresponding to the at least two first threaded holes 320 , and the at least two second threaded holes are arranged around the second through hole; the first threaded hole 320 is connected to the corresponding second threaded hole by a bolt 410 .

[0029] Specifically, the thread directions of the first threaded hole 320 and the second threaded hole are the same. In this embodiment, the first flange 300 is provided with at least two first threaded holes 320, and the at least two first threaded holes 320 are arranged around the first through hole. The second flange 400 is provided with at least two second threaded holes corresponding to the at least two first threaded holes 320 one by one, and the at least two second threaded holes are arranged around the second through hole. The first threaded hole 320 is connected to the corresponding second threaded hole by a bolt 410, which can improve the connection stability of the first flange 300 and the second flange 400.

[0030] Optionally, the positioning protrusion 310 includes at least two arc-shaped protrusions, and the positioning groove includes at least two arc-shaped depressions. The at least two arc-shaped protrusions are arranged around the first through hole, and the at least two arc-shaped protrusions are located on the same circumference. The at least two arc-shaped depressions are arranged around the second through hole, and the at least two arc-shaped depressions are located on the same circumference. The at least two arc-shaped protrusions correspond to the at least two arc-shaped depressions one by one, and the arc-shaped protrusions are embedded in the corresponding arc-shaped depressions.

[0031] Specifically, the shapes of the above-mentioned arc-shaped protrusion and the above-mentioned arc-shaped recess match. In this embodiment, the positioning protrusion 310 includes at least two arc-shaped protrusions, and the positioning groove includes at least two arc-shaped recesses. The at least two arc-shaped protrusions are arranged around the first through hole, and the at least two arc-shaped protrusions are located on the same circumference. The at least two arc-shaped recesses are arranged around the second through hole, and the at least two arc-shaped recesses are located on the same circumference. The at least two arc-shaped protrusions correspond to the at least two arc-shaped recesses one by one, and the arc-shaped protrusions are embedded in the corresponding arc-shaped recesses, which can further improve the stability of the connection between the first flange 300 and the second flange 400.

[0032] Optionally, the positioning protrusion 310 is an annular protrusion, the positioning groove is an annular depression, the axis of the annular protrusion coincides with the axis of the first through hole, and the axis of the annular depression coincides with the axis of the second through hole.

[0033] Specifically, the shapes of the annular protrusion and the annular recess match. In this embodiment, the positioning protrusion 310 is an annular protrusion, and the positioning groove is an annular recess. The axis of the annular protrusion coincides with the axis of the first through hole, and the axis of the annular recess coincides with the axis of the second through hole, which can further improve the stability of the connection between the first flange 300 and the second flange 400.

[0034] Optionally, the driving device also includes a dust cover 500, and the dust cover 500 is provided on the end face of the driving shaft 200 facing the driving assembly 100, the inner wall of the positioning protrusion 310 forms a connecting hole, and the dust cover 500 includes a connecting portion corresponding to the connecting hole, the connecting portion is located in the connecting hole, and the connecting portion is clamped with the inner wall of the connecting hole.

[0035] Specifically, the dust cover 500 and the drive shaft 200 may be detachably connected. In this embodiment, the drive device further includes a dust cover 500. The dust cover 500 is provided on the end face of the drive shaft 200 facing the drive assembly 100. The inner wall of the positioning protrusion 310 forms a connecting hole. The dust cover 500 includes a connecting portion corresponding to the connecting hole. The connecting portion is located in the connecting hole, and the connecting portion is engaged with the inner wall of the connecting hole, so that during the operation of the drive device, dust and foreign matter can be prevented from entering the drive shaft 200, thereby helping to maintain the drive shaft 200 in good working condition and prolong its service life.

[0036] Optionally, the first end face of the dust cover 500 includes a first area 510 and a second area 520, the first end face of the dust cover 500 is the end face of the dust cover 500 facing the drive assembly 100, the first end face of the dust cover 500 is located outside the connecting hole, and the distance between the first area 510 and the first end face of the first flange 300 is greater than the distance between the second area 520 and the first end face of the first flange 300.

[0037] Specifically, Figure 3 This is a second structural schematic diagram of a drive shaft 200 and a first flange 300 provided in an embodiment of the present application, such as Figure 3 As shown, the first area 510 and the second area 520 may be divided according to the internal structure of the drive shaft 200 such as the motion trajectory of the tripod assembly. For example, the first area 510 may correspond to an area where internal parts of the drive shaft 200 may protrude from the end surface of the drive shaft 200.

[0038] In this embodiment, the first end surface of the dust cover 500 includes a first area 510 and a second area 520. The first end surface of the dust cover 500 is the end surface of the dust cover 500 facing the drive assembly 100. The first end surface of the dust cover 500 is located outside the connecting hole, and the distance between the first area 510 and the first end surface of the first flange 300 is greater than the distance between the second area 520 and the first end surface of the first flange 300, so that during the operation of the drive shaft 200, the internal structure of the drive shaft 200 can be prevented from colliding with the dust cover 500.

[0039] An embodiment of the present application further provides a vehicle, comprising the driving device described in the above embodiment, wherein the driving shaft 200 is used to drive the wheels to rotate.

[0040] In this implementation, since the vehicle includes the driving device described in the above embodiment, the vehicle can implement various use processes of the above driving device and has the same beneficial effects, which will not be described again to avoid repetition.

[0041] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0042] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A driving device, characterized in that: It includes a driving assembly and a driving shaft, a first flange and a second flange, the driving assembly includes a power output shaft, the first flange is provided with a first through hole, the second flange is provided with a second through hole, the first flange is sleeved on the driving shaft through the first through hole, the driving shaft is fixedly connected to the first flange, the second flange is sleeved on the power output shaft through the second through hole, and the power output shaft is connected to the second flange; The first end face of the first flange is arranged opposite to the first end face of the second flange, and the first flange is fixedly connected to the second flange. One of the first end face of the first flange and the first end face of the second flange is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is embedded in the positioning groove.

2. The driving device according to claim 1, characterized in that: The first end surface of the first flange is provided with the positioning protrusion, and the positioning protrusion is arranged around the first through hole.

3. The driving device according to claim 2, characterized in that: The first end surface of the second flange is provided with the positioning groove, and the positioning groove is arranged around the second through hole.

4. The driving device according to claim 1, characterized in that: The first flange is provided with at least two first threaded holes, and the at least two first threaded holes are arranged around the first through hole; The second flange is provided with at least two second threaded holes corresponding to the at least two first threaded holes one by one, and the at least two second threaded holes are arranged around the second through hole; the first threaded hole is connected to the corresponding second threaded hole by bolts.

5. The driving device according to claim 3, characterized in that: The positioning protrusion includes at least two arc-shaped protrusions, and the positioning groove includes at least two arc-shaped depressions. The at least two arc-shaped protrusions are arranged around the first through hole, and the at least two arc-shaped protrusions are located on the same circumference. The at least two arc-shaped depressions are arranged around the second through hole, and the at least two arc-shaped depressions are located on the same circumference. The at least two arc-shaped protrusions correspond to the at least two arc-shaped depressions one by one, and the arc-shaped protrusions are embedded in the corresponding arc-shaped depressions.

6. The driving device according to claim 1, characterized in that: The positioning protrusion is an annular protrusion, the positioning groove is an annular depression, the axis of the annular protrusion coincides with the axis of the first through hole, and the axis of the annular depression coincides with the axis of the second through hole.

7. The driving device according to claim 5 or 6, characterized in that: The driving device also includes a dust cover, which is provided on the end surface of the driving shaft facing the driving assembly, the inner wall of the positioning protrusion forms a connecting hole, and the dust cover includes a connecting portion corresponding to the connecting hole, the connecting portion is located in the connecting hole, and the connecting portion is clamped with the inner wall of the connecting hole.

8. The driving device according to claim 7, characterized in that: The first end face of the dust cover includes a first area and a second area. The first end face of the dust cover is the end face of the dust cover facing one end of the drive assembly. The first end face of the dust cover is located outside the connecting hole, and the distance between the first area and the first end face of the first flange is greater than the distance between the second area and the first end face of the first flange.

9. A vehicle, characterized in that: The driving device comprises the driving device as claimed in any one of claims 1 to 8, wherein the driving shaft is used to drive the wheels to rotate.

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