CN116989069A - Transmission shaft spline shaft fork and new energy vehicle - Google Patents
Transmission shaft spline shaft fork and new energy vehicle Download PDFInfo
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- CN116989069A CN116989069A CN202311261397.5A CN202311261397A CN116989069A CN 116989069 A CN116989069 A CN 116989069A CN 202311261397 A CN202311261397 A CN 202311261397A CN 116989069 A CN116989069 A CN 116989069A
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- 230000005540 biological transmission Effects 0.000 title abstract description 95
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 238000010791 quenching Methods 0.000 claims description 18
- 230000000171 quenching effect Effects 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 208000010392 Bone Fractures Diseases 0.000 abstract description 10
- 206010017076 Fracture Diseases 0.000 abstract description 10
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The application discloses a transmission shaft spline shaft fork and a new energy vehicle, wherein the transmission shaft spline shaft fork comprises: the shaft fork body is arc-shaped to define a mounting hole, the shaft fork body is provided with a first end and a second end which are opposite to each other, an assembly gap is formed between the first end and the second end, a first cambered surface section, a second cambered surface section and a third cambered surface section are formed on the inner peripheral wall of the mounting hole, and the second cambered surface section is opposite to the assembly gap; the first fork portion and the second fork portion are arranged at the same end of the shaft fork main body, and the first fork portion and the second fork portion are opposite and spaced apart. Therefore, by arranging the second cambered surface section, the structural strength of the stress concentration point of the spline shaft fork of the transmission shaft can be improved, the stress of the stress concentration point of the spline shaft fork of the transmission shaft can be reduced or eliminated, compared with the prior art, the spline shaft fork of the transmission shaft can be used on a vehicle model with larger torque transmission requirement, the fracture risk of the spline shaft fork of the transmission shaft at the stress concentration point is reduced, and the spline shaft fork of the transmission shaft meets the fatigue life requirement.
Description
Technical Field
The application relates to the field of shaft forks, in particular to a spline shaft fork of a transmission shaft and a new energy vehicle.
Background
In the related art, the transmission shaft spline shaft fork is assembled with the steering transmission shaft in a matched manner, the steering transmission shaft penetrates through the transmission shaft spline shaft fork, and the transmission shaft spline shaft fork and the steering transmission shaft are assembled in a closely matched manner through bolts and nuts, so that the wall thickness of the transmission shaft spline shaft fork cannot be too thick. After the transmission shaft spline shaft fork is clamped under the action of the bolts and the nuts, stress concentration points exist in the transmission shaft spline shaft fork, if the transmission shaft spline shaft fork is used on a vehicle type with a larger torque transmission requirement, the transmission shaft spline shaft fork is easy to break at the stress concentration points, and the fatigue life requirement of the transmission shaft spline shaft fork cannot be met.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present application is to provide a spline shaft fork of a transmission shaft, which can be used on a vehicle type with a large torque transmission requirement, and reduce the risk of fracture of the spline shaft fork of the transmission shaft at a stress concentration point, so that the spline shaft fork of the transmission shaft meets the fatigue life requirement.
The application further provides a new energy vehicle.
The spline shaft yoke of the transmission shaft according to the present application comprises:
the shaft fork main body is arc-shaped to define a mounting hole, the shaft fork main body is provided with a first end and a second end which are opposite along the circumferential direction of the shaft fork main body, an assembly gap is formed between the first end and the second end, the first end is connected with a first assembly part, the second end is connected with a second assembly part which is assembled with the first assembly part in a matched manner, the inner peripheral wall of the mounting hole is provided with a first cambered surface section, a second cambered surface section and a third cambered surface section, the second cambered surface section is connected between the first cambered surface section and the third cambered surface section, the first cambered surface section and/or the third cambered surface section is provided with a tooth structure, and the second cambered surface section is opposite to the assembly gap;
the first fork part and the second fork part are arranged at the same end part of the shaft fork main body along the axial direction of the mounting hole, and the first fork part and the second fork part are opposite and are spaced.
According to the transmission shaft spline shaft fork, the second cambered surface section is not provided with the tooth structure, so that the structural strength of the transmission shaft spline shaft fork stress concentration point can be improved, the stress of the transmission shaft spline shaft fork stress concentration point can be reduced or eliminated, and compared with the prior art, the transmission shaft spline shaft fork can be used on a vehicle type with larger torque transmission requirement, the fracture risk of the transmission shaft spline shaft fork at the stress concentration point is reduced, and the transmission shaft spline shaft fork meets the fatigue life requirement.
In some examples of the application, the second arcuate segment is a circular arc-shaped face.
In some examples of the application, the outer peripheral wall of the yoke body has a thickened thickness section opposite the second cambered surface section.
In some examples of the application, the thickness dimension of the thickness-thickened section is D, satisfying the relationship: d is more than or equal to 1mm and less than or equal to 2mm.
In some examples of the application, the orthographic projection of the thickened section and the orthographic projection of the second cambered section have overlapping areas along the assembly gap to second cambered section direction.
In some examples of the application, the orthographic projection of the thickened section and the orthographic projection of the second cambered section completely coincide.
In some examples of the application, the orthographic projection of the assembly gap is located at a middle position of the second cambered surface section along the direction from the assembly gap to the second cambered surface section.
In some examples of the application, a quench section is formed at least one end of the second cambered section along an axial direction of the mounting hole, and the quench section is treated by an induction quenching process.
In some examples of the application, the length dimension of the quench section along the axial direction of the mounting bore is L, satisfying the relationship: l is more than or equal to 4mm and less than or equal to 6mm.
The new energy vehicle comprises the transmission shaft spline shaft fork.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a drive shaft spline yoke according to an embodiment of the present application;
FIG. 2 is another angular schematic view of a drive shaft spline yoke according to an embodiment of the present application;
FIG. 3 is another angular schematic view of a drive shaft spline yoke according to an embodiment of the present application;
fig. 4 is a cross-sectional view of a drive shaft spline yoke of an embodiment of the present application.
Reference numerals: 100 spline shaft forks of a transmission shaft; 10 a fork body; 11 mounting holes; 111 a first cambered surface section; 112 a second cambered surface section; 113 a third cambered surface section; 114 tooth structure; 115 quenching section; 116 a first slot structure; 117 a second slot structure; 12 a first end; 13 a second end; 14 assembly gap; 15 a first fitting part; 151 first assembly holes; 16 a second fitting part; 161 a second mounting hole; 20 a first fork; 30 a second prong; 31 a third assembly hole; 32 installation space; 40 thickness thickened section.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
A propeller shaft spline shaft yoke 100 according to an embodiment of the present application, which can be fitted with a steering propeller shaft of a vehicle, will be described below with reference to fig. 1 to 4.
As shown in fig. 1 to 4, a propeller shaft spline yoke 100 according to an embodiment of the present application includes: a fork body 10, a first fork portion 20 and a second fork portion 30. The shaft fork main body 10 is arc-shaped to define a mounting hole 11, along the circumferential direction of the shaft fork main body 10, the shaft fork main body 10 is provided with a first end 12 and a second end 13 which are opposite, an assembly gap 14 is formed between the first end 12 and the second end 13, the first end 12 is connected with a first assembly part 15, the second end 13 is connected with a second assembly part 16 which is assembled with the first assembly part 15 in a matched mode, the inner peripheral wall of the mounting hole 11 is provided with a first cambered surface section 111, a second cambered surface section 112 and a third cambered surface section 113, the second cambered surface section 112 is connected between the first cambered surface section 111 and the third cambered surface section 113, the first cambered surface section 111 and/or the third cambered surface section 113 is provided with a tooth structure 114, and the second cambered surface section 112 is arranged opposite to the assembly gap 14. The first fork portion 20 and the second fork portion 30 are provided at the same end of the fork main body 10 in the axial direction of the mounting hole 11, and the first fork portion 20 and the second fork portion 30 are opposite and spaced apart.
The axle fork main body 10 is arc-shaped, the axle fork main body 10 defines a mounting hole 11, along the circumferential direction of the axle fork main body 10, the axle fork main body 10 is provided with a first end 12 and a second end 13 which are opposite, the first end 12 of the axle fork main body 10 and the second end 13 of the axle fork main body 10 are oppositely arranged, when the spline axle fork 100 of the transmission shaft is not matched and assembled with a steering transmission shaft of a vehicle, an assembly gap 14 is formed between the first end 12 and the second end 13, the first end 12 is connected with a first assembly part 15, the second end 13 is connected with a second assembly part 16, further, the outer circumferential wall of the first end 12 is connected with a first assembly part 15, the outer circumferential wall of the second end 13 is connected with a second assembly part 16, the first assembly part 15 and the second assembly part 16 are fixedly assembled through bolt and nut matching, specifically, the steering transmission shaft is penetrated in the mounting hole 11, the first assembly part 15 is provided with a first assembly hole 151, the second assembly part 16 is provided with a second assembly hole 161, the bolt simultaneously penetrates through the first assembly hole 151 and the second assembly hole 161, and the bolt and the nut is matched and assembled with the nut so as to clamp the steering transmission shaft in the mounting hole 11.
The inner peripheral wall of the mounting hole 11 is formed with a first cambered surface section 111, a second cambered surface section 112 and a third cambered surface section 113, the second cambered surface section 112 is adjacent to the first cambered surface section 111 and the third cambered surface section 113, the second cambered surface section 112 is connected between the first cambered surface section 111 and the third cambered surface section 113, the first cambered surface section 111 and/or the third cambered surface section 113 are formed with a tooth structure 114, it is also understood that the first cambered surface section 111 or the third cambered surface section 113 is formed with a tooth structure 114, or the first cambered surface section 111 and the third cambered surface section 113 are both formed with a tooth structure 114, and the application is described taking the first cambered surface section 111 and the third cambered surface section 113 both formed with the tooth structure 114 as an example. The second cambered surface section 112 is disposed opposite to the assembly gap 14, and the second cambered surface section 112 is disposed spaced apart from the assembly gap 14.
Along the axial direction of the mounting hole 11, the first fork portion 20 and the second fork portion 30 are arranged at the same end of the shaft fork main body 10, the first fork portion 20 and the second fork portion 30 are opposite and are arranged at intervals, a mounting space 32 is formed between the first fork portion 20 and the second fork portion 30, the mounting space 32 is used for assembling a hand piece, the first fork portion 20 and the second fork portion 30 are respectively provided with a third mounting hole 31, the third mounting holes 31 are used for being assembled with the hand piece in a matching way, the spline shaft fork 100 of the transmission shaft can rotate relative to the hand piece, for example: the drive shaft spline yoke 100 is rotatable 90 ° relative to the counter piece.
Wherein, steering drive shaft wears to locate mounting hole 11, through bolt, nut cooperation, makes first assembly portion 15 and second assembly portion 16 towards being close to each other the direction and removes, and assembly clearance 14 reduces, makes fork main part 10 clamp steering drive shaft, and tooth structure 114 and steering drive shaft cooperation assembly. After the existing shaft fork main body clamps the steering transmission shaft, stress concentration points exist at positions of the shaft fork main body, which correspond to the assembly gaps 14, and the shaft fork main body is easy to break.
In the present application, the tooth structure 114 is disposed on the first cambered surface section 111 and the third cambered surface section 113, the second cambered surface section 112 is not provided with the tooth structure 114, and when in processing, the cutter is made to avoid the second cambered surface section 112, and the material at the position of the shaft fork main body 10 corresponding to the second cambered surface section 112 is not removed, which can be understood that the material at the stress concentration point of the shaft fork main body 10 is not removed, in other words, the material at the second cambered surface section 112 is not removed, so that the sharp angle formed at the second cambered surface section 112 after processing is avoided, the stress concentration condition at the second cambered surface section 112 is improved, and the spline shaft fork 100 of the transmission shaft can bear larger torque without fatigue fracture. Therefore, the second cambered surface section 112 is not provided with the tooth structure 114, so that the structural strength and fatigue durability of the stress concentration point of the shaft fork main body 10 can be improved, the stress of the stress concentration point of the shaft fork main body 10 can be reduced or eliminated, and compared with the prior art, the transmission shaft spline shaft fork 100 can be used on a vehicle type with a larger torque transmission requirement, the fracture risk of the transmission shaft spline shaft fork 100 at the stress concentration point is reduced, and the transmission shaft spline shaft fork 100 meets the fatigue life requirement.
As shown in fig. 1, the first cambered surface section 111 and the third cambered surface section 113 are formed with a plurality of first groove structures 116, and a tooth structure 114 is formed between two adjacent first groove structures 116.
Therefore, by arranging the second cambered surface section 112, the structural strength of the stress concentration point of the transmission shaft spline shaft fork 100 can be improved, the stress of the stress concentration point of the transmission shaft spline shaft fork 100 can be reduced or eliminated, and compared with the prior art, the transmission shaft spline shaft fork 100 can be used on a vehicle type with larger torque transmission requirement, the fracture risk of the transmission shaft spline shaft fork 100 at the stress concentration point is reduced, and the transmission shaft spline shaft fork 100 meets the fatigue life requirement.
In some embodiments of the present application, as shown in fig. 1, the second cambered surface section 112 is a circular arc surface, so that the second cambered surface section 112 is reasonable in shape, which is beneficial to the adaptation of the second cambered surface section 112 and the steering transmission shaft, and the circular arc transition between the first cambered surface section 111 and the third cambered surface section 113 is beneficial to improving the stress concentration condition at the second cambered surface section 112, further improving the structural strength and fatigue durability at the stress concentration point of the shaft fork main body 10, further reducing or eliminating the stress magnitude of the stress concentration point of the shaft fork main body 10, and further reducing the fracture risk of the transmission shaft spline shaft fork 100 at the stress concentration point when the transmission shaft spline shaft fork 100 can be used on a vehicle type with larger torque transmission requirement.
In some embodiments of the present application, as shown in fig. 1 and 3, the outer peripheral wall of the fork body 10 has a thickened thickness section 40, the thickened thickness section 40 being opposite to the second cambered surface section 112. The thickened section 40 and the shaft fork main body 10 are integrally formed, and the thickened section 40 and the second cambered surface section 112 are correspondingly arranged along the thickness direction of the shaft fork main body 10. By providing the thickness-thickened section 40 on the outer peripheral wall of the yoke body 10, the position structure at the stress concentration point of the yoke body 10 can be thickened. Analysis and verification are carried out on the stress condition of the transmission shaft spline shaft yoke 100 through Abaqus/CAE analysis software, and analysis results show that the stress value at the stress concentration point of the transmission shaft spline shaft yoke 100 provided with the thickness thickening section 40 is reduced by 57.6%, so that the structural strength at the stress concentration point of the transmission shaft spline shaft yoke 100 is improved by arranging the thickness thickening section 40 on the peripheral wall of the shaft yoke main body 10, the stress magnitude at the stress concentration point is indirectly reduced, and the transmission shaft spline shaft yoke 100 can bear larger fatigue strength without breaking.
In some embodiments of the present application, the thickness dimension of thickened section 40 is D, satisfying the relationship: 1 mm.ltoreq.D.ltoreq.2 mm, for example: the thickness dimension of the thickness-thickened section 40 is 1mm, 1.5mm or 2mm, and the application is illustrated by taking the thickness dimension of the thickness-thickened section 40 as 1.5mm as an example, so that the thickness dimension of the thickness-thickened section 40 can be suitable, and when the transmission shaft spline shaft fork 100 is matched and assembled with a steering transmission shaft, the transmission shaft spline shaft fork 100 can be tightly matched with the steering transmission shaft.
In some embodiments of the present application, the orthographic projection of thickened thickness section 40 and the orthographic projection of second cambered section 112 have overlapping areas along the direction of assembly gap 14 to second cambered section 112. In the X direction in fig. 1, the front projection of the thickness-thickened section 40 and the front projection of the second cambered surface section 112 have overlapping areas, which can be understood that the front projection of the thickness-thickened section 40 and the front projection of the second cambered surface section 112 partially overlap, or the front projection of the thickness-thickened section 40 and the front projection of the second cambered surface section 112 completely overlap, so that the thickness-thickened section 40 and the second cambered surface section 112 can be correspondingly arranged, and the structural strength of the stress concentration point of the spline shaft fork 100 of the transmission shaft can be ensured to be improved.
In some embodiments of the present application, along the direction from the assembly gap 14 to the second cambered surface section 112, the orthographic projection of the thickness-thickened section 40 and the orthographic projection of the second cambered surface section 112 are completely overlapped, in other words, the orthographic projection of the thickness-thickened section 40 and the orthographic projection of the second cambered surface section 112 are identical in area, and the orthographic projection of the thickness-thickened section 40 and the orthographic projection of the second cambered surface section 112 are completely overlapped, so that the arrangement can further ensure that the thickness-thickened section 40 and the second cambered surface section 112 are correspondingly arranged, and can further ensure that the structural strength at the stress concentration point of the spline shaft fork 100 of the transmission shaft is improved.
In some embodiments of the present application, along the direction from the assembly gap 14 to the second cambered surface section 112, the orthographic projection of the assembly gap 14 is located at the middle position of the second cambered surface section 112, it should be noted that, the orthographic projection of the assembly gap 14 is located at the middle position of the second cambered surface section 112 along the circumferential direction of the mounting hole 11, after the transmission shaft spline shaft fork 100 clamps the steering transmission shaft, the orthographic projection of the assembly gap 14 is located at the middle position of the second cambered surface section 112, so that the stress concentration point of the transmission shaft spline shaft fork 100 can be located at the position corresponding to the second cambered surface section 112 of the transmission shaft spline shaft fork 100, thereby ensuring that the transmission shaft spline shaft fork 100 can be used on a vehicle type with a larger torque transmission requirement, reducing the fracture risk of the transmission shaft spline shaft fork 100 at the stress concentration point, and enabling the transmission shaft spline shaft fork 100 to meet the fatigue life requirement.
In some embodiments of the present application, as shown in fig. 1, at least one end of the second cambered surface section 112 is formed with a quenching section 115 in the axial direction of the mounting hole 11, and the quenching section 115 is treated by an induction quenching process. The axial direction of the mounting hole 11 refers to the Z direction in fig. 1, and at least one end of the second cambered surface section 112 is formed with a quenching section 115, and preferably, both ends of the second cambered surface section 112 are formed with quenching sections 115 along the axial direction of the mounting hole 11.
Wherein, according to the Abaqus/CAE software analysis and the actual test results, the stress concentration point of the transmission shaft spline shaft fork 100 is located at the position of the shaft fork main body 10 corresponding to the second cambered surface section 112. In actual use, along the axial direction of the mounting hole 11, the two ends of the mounting hole 11 are matched with the steering transmission shaft. Therefore, along the axial direction of the mounting hole 11, at least one end of the second cambered surface section 112 is formed with a quenching section 115, and the quenching section 115 is treated by an induction quenching process, so that the structural strength of the end of the second cambered surface section 112 can be further improved, the stress of the stress concentration point of the transmission shaft spline shaft fork 100 can be further reduced or eliminated, the transmission shaft spline shaft fork 100 can be used on a vehicle type with larger torque transmission requirement, the fracture risk of the transmission shaft spline shaft fork 100 at the stress concentration point is further reduced, and the transmission shaft spline shaft fork 100 meets the fatigue life requirement.
In some embodiments of the present application, the length dimension of the quench section 115 along the axial direction of the mounting bore 11 is L, satisfying the relationship: 4 mm.ltoreq.L.ltoreq.6 mm, for example: the length dimensions of quench section 115 are 4mm, 5mm and 6mm, and the application is illustrated with quench section 115 having a length dimension of 5 mm. The length dimension of the quenching section 115 can be suitable, and the structural strength of the second cambered surface section 112 at the position matched with the steering transmission shaft can be guaranteed to be improved, so that the stress of the stress concentration point of the transmission shaft spline shaft fork 100 can be further reduced or eliminated, the transmission shaft spline shaft fork 100 can be guaranteed to be used on a vehicle type with larger torque transmission requirement, and the fracture risk of the transmission shaft spline shaft fork 100 at the stress concentration point is further reduced.
In some embodiments of the present application, as shown in fig. 1, the second cambered surface section 112 is formed with a second groove structure 117, the second groove structure 117 may be disposed opposite to the assembly gap 14, the second groove structure 117 may be disposed to extend along the axial direction of the mounting hole 11, and by disposing the second groove structure 117, the stress magnitude of the stress concentration point of the fork main body 10 may be further reduced or eliminated.
The new energy vehicle according to the embodiment of the present application includes the propeller shaft spline yoke 100 of the above-described embodiment. By arranging the second cambered surface section 112, the structural strength of the stress concentration point of the transmission shaft spline shaft fork 100 can be improved, the stress of the stress concentration point of the transmission shaft spline shaft fork 100 can be reduced or eliminated, compared with the prior art, the transmission shaft spline shaft fork 100 can be used on a vehicle type with larger torque transmission requirement, the fracture risk of the transmission shaft spline shaft fork 100 at the stress concentration point is reduced, and the transmission shaft spline shaft fork 100 meets the fatigue life requirement.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A drive shaft spline shaft yoke, comprising:
the shaft fork main body is arc-shaped to define a mounting hole, the shaft fork main body is provided with a first end and a second end which are opposite to each other along the circumferential direction of the shaft fork main body, an assembly gap is formed between the first end and the second end, the first end is connected with a first assembly part, the second end is connected with a second assembly part which is assembled with the first assembly part in a matched manner, the inner peripheral wall of the mounting hole is provided with a first cambered surface section, a second cambered surface section and a third cambered surface section, the second cambered surface section is connected between the first cambered surface section and the third cambered surface section, the first cambered surface section and/or the third cambered surface section is provided with a tooth structure, and the second cambered surface section is opposite to the assembly gap;
the first fork part and the second fork part are arranged at the same end part of the shaft fork main body along the axial direction of the mounting hole, and the first fork part and the second fork part are opposite and are spaced.
2. The propeller shaft spline yoke of claim 1, wherein the second cambered surface section is a circular arc-shaped surface.
3. The propeller shaft spline yoke of claim 1, wherein the peripheral wall of the yoke body has a thickened thickness section, the thickened thickness section being opposite the second cambered section.
4. A propeller shaft spline yoke as set forth in claim 3, wherein said thickness-thickened section has a thickness dimension D satisfying the relationship: d is more than or equal to 1mm and less than or equal to 2mm.
5. A propeller shaft spline shaft yoke as claimed in claim 3, characterized in that the orthographic projection of the thickened thickness section and the orthographic projection of the second cambered section have overlapping areas along the direction from the assembly gap to the second cambered section.
6. The propeller shaft spline yoke of claim 5, wherein the orthographic projection of the thickened section and the orthographic projection of the second cambered section are fully coincident.
7. The propeller shaft spline yoke of claim 1, wherein an orthographic projection of said assembly gap is located at a mid-position of said second cambered surface section along a direction from said assembly gap to said second cambered surface section.
8. The propeller shaft spline shaft yoke as recited in any one of claims 1-7, characterized in that at least one end of said second cambered surface section is formed with a quenched section in an axial direction of said mounting hole, said quenched section being treated by an induction quenching process.
9. The propeller shaft spline shaft yoke of claim 8, wherein the length dimension of said quenched segment, in the axial direction of said mounting hole, is L, satisfying the relationship: l is more than or equal to 4mm and less than or equal to 6mm.
10. A new energy vehicle, characterized by comprising a propeller shaft spline yoke according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261397.5A CN116989069A (en) | 2023-09-27 | 2023-09-27 | Transmission shaft spline shaft fork and new energy vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261397.5A CN116989069A (en) | 2023-09-27 | 2023-09-27 | Transmission shaft spline shaft fork and new energy vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116989069A true CN116989069A (en) | 2023-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311261397.5A Pending CN116989069A (en) | 2023-09-27 | 2023-09-27 | Transmission shaft spline shaft fork and new energy vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116989069A (en) |
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2023
- 2023-09-27 CN CN202311261397.5A patent/CN116989069A/en active Pending
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